How does basal temperature change before menstruation? Basal temperature before menstruation and during other periods of the cycle

A regular menstrual cycle is the dream of all women, because it is for the most part the fact that reproductive system functions correctly. Of course, each organism is individual and has its own characteristics that affect the formation of the cycle, its duration and form of occurrence. But there are still some standards for all women. Deviation from them indicates inflammatory, infectious or other pathological processes, occurring in the body. One of the important indicators is the basal temperature before menstruation, at the beginning and after its completion. Regular measurement allows you to monitor your condition women's health, determine the approaching menstruation or pregnancy.

If you know what it should be and measure it regularly, you can promptly detect deviations in the functions of the reproductive system. Then the woman, without delay, should visit a gynecologist to diagnose the pathology.

Changes in basal temperature (or BT for short) depend on the content of hormones in the body. It can be measured in several ways:

An elevated basal temperature before menstruation, 36.9-37.2, can remain at the same level 1-2 weeks before their arrival. That is, this indicator is a fact of the imminent onset of menstruation. In 1-3 days or when menstruation begins, the temperature changes to 36.6-36.4.

An increase in basal temperature before menstruation to 37-37.2 may indicate pregnancy, which is due to changes in the content of hormones in a woman’s body. The same temperature indicators are observed during ovulation, but, as a rule, after its completion, the mark on the thermometer decreases, which does not happen after conception. Then elevated temperature may persist until the end of the first trimester of pregnancy.

Not all women are concerned about what basal temperature before menstruation is normal and what is not. Moreover, most of them do not measure it at all, but this is one of the main indicators with which you can diagnose many diseases of the reproductive system.

Despite generally accepted norms, BT may vary among women during the same period of the cycle, but does not pose a health hazard. This is rather an exception due to the individual characteristics of the body.

The temperature may rise within 37.3 1-5 days before the start of menstruation, when hormonal levels is changing. This is the norm, but provided that after the arrival of menstruation, the indicator begins to decrease, and over the course of 5 days it gradually reaches a value of 36.7-36.4.

Generally normal indicators BT throughout the entire cycle fluctuates between 36.3-37.3, and a higher or lower level is a reason for promptly contacting a doctor to identify the cause of the deviations.

Why does basal temperature rise?

Increased BT before the attack critical days may occur for several reasons:

pregnancy;
dysfunction of the genitourinary system;
inflammation occurring in the genitals;
phase menstrual cycle.

Pregnancy is one of the main reasons why basal temperature increases. This is due to the fact that in its early stages the female body begins to rebuild, the size and some functions of the genital organs change, and the level of hormones intensively increases. For this reason, during pregnancy, BT may rise or decrease slightly, remaining within the range of 37.0-37.3 degrees, depending on the characteristics of the functioning and structure of the female body. It is necessary to start measuring BT in the first trimester of pregnancy, since during this period fetal formation and restructuring occur. hormonal levels for the favorable development of the baby in the womb

Malfunction of the genital organs can also have a temperature-increasing effect. In this situation, the increased rate is usually accompanied by feeling unwell women, since dysfunction of the genital organs has a significant impact on health. Before menstruation, the basal temperature can vary from 37.2 to 37.5 degrees, remain for 1-1.5 weeks before the onset of menstruation, and after the start of menstruation, drop sharply to 36.3.

If a woman has any inflammatory pathologies that affect reproductive function, then it is possible that BT before menstruation will increase. This may appear a week before menstruation, but its increase will be more noticeable 1-3 days before menstruation occurs.

The phase of the menstrual cycle affects the basal temperature.

In the first half, the BT mark should not rise above 36.7, while in the second half, a temperature of 36.8, but not exceeding 37.3 degrees, is considered the norm.

Basically, BT drops during the day and increases in the evening. Optimal time for measurement - the morning, when the woman is still in bed. If you keep a graph of basal temperature regularly, then within 3-4 months you can see a pattern of changes in indicators. This can further help identify any abnormalities in the menstrual cycle and make a diagnosis. It is not necessary to monitor BT fluctuations all day, measuring it 3-4 times a day, but daily observations will not be superfluous.

7 rules for measuring BT

The BT schedule is very important, because, based on its readings, the doctor will be able to make some conclusions regarding the woman’s health, so you need to know not only why the basal temperature is measured before menstruation, what it should be, but also what its deviations from the norm mean, how It is correct to try it on at home.

To measure BT, there are some rules with which you can correctly perform the procedure and obtain a reliable result.

Temperatures should be taken at the same time. It's best to choose the morning. A slight deviation within 30 minutes is allowed. The ideal time to take the measurement is no later than 8 a.m.; it is also necessary that you have slept for more than 4 hours beforehand.

You can measure BT by anyone in a convenient way: in the mouth, through the colon, into the vagina.

It is necessary to use the same thermometer, but if under any circumstances it had to be replaced, this must be recorded in a separate notebook. In the evening, you should prepare the necessary equipment, in particular, a device for measuring temperature, and place it near the bed, and in the morning, without getting up, begin the procedure.

How long you need to hold the thermometer depends on the measurement method, but on average no less than 5 minutes.

You should maintain a special schedule that will indicate all the indicators for the day, week, month and beyond. It helps to trace the stages when the temperature decreases or increases.

If you follow these simple recommendations, then the measurements will be reliable, and with their help it will be possible to prevent the exacerbation of diseases of the reproductive system or to detect pregnancy.

What may an increased or decreased BT indicate?

A BT indicator that significantly exceeds or is below the required value may indicate disturbances and interruptions in the functions of the reproductive system. Therefore, many women are interested in what the normal basal temperature should be and what it means if the indicators do not coincide with the norm.

Excessively high or low temperature caused by certain disturbances in the functioning of the body and the synthesis of hormones. The main reasons due to which changes in BT can be observed are the following:

hormonal imbalances;
early onset of menstruation;
irregularities in work thyroid gland and ovaries.

Hormonal imbalances are usually caused by a lack of female body estrogen or progesterone. This may be manifested by an increase in BT due to a deficiency of necessary for normal operation reproductive hormone system, so a basal temperature before menstruation of 37.0 in this case is evidence of violations. Sometimes it can reach 37.5 degrees.

A reduced BT level may indicate the end of menstruation or premature termination of pregnancy.

BT indicators should be recorded in a separate notebook in the form of a graph. On its basis, it is possible to trace obvious deviations in the course of the menstrual cycle. The level of basal temperature should be approximately the same for all women, except in cases where there are individual characteristics And congenital pathologies in the reproductive system. If any deviations in the schedule are detected, the causes of which are unknown, you should visit a doctor, since the development of inflammatory processes or diseases in the body or pregnancy.

Measuring basal temperature is a fairly simple procedure, but it can be used to find out in what condition the a large number of processes in human body. Of particular interest is the method of measuring basal temperature to determine the state of the female body: ovulation and pregnancy. If a woman is planning a pregnancy, then monitoring basal temperature is a daily necessary manipulation. In our article we will try to describe in detail what certain values of basal temperature before menstruation indicate.

What can be the basal temperature before menstruation?

Before writing about the possible values of basal temperature, we should talk about the method for measuring basal temperature. This procedure is carried out in the morning, without getting out of bed, using an ordinary thermometer. The normal basal temperature before menstruation, in the absence of ovulation and in the absence of pregnancy, is 36.9 ° C. This value may indicate either that there is no longer ovulation, or that .

An increase in basal temperature before menstruation to 37-37.2 ° C most likely indicates pregnancy - in this case, you can not wait for menstruation.

A slightly elevated basal temperature before menstruation - 37.5°C - indicates the presence of inflammation in the pelvic organs, and this should be a reason to contact a gynecologist.

A high basal temperature before menstruation may be a consequence of insufficient estrogen levels, which can cause infertility. This symptom also requires consultation with a gynecologist and endocrinologist. In some women, an increase in basal temperature before menstruation may be associated with the effect of progesterone on the thermoregulation center. During menstruation, the basal temperature is 37°C.

A drop in basal temperature below 36.9°C before menstruation is also an alarming signal, which can be seen as the reason for failure to get pregnant. So, low temperature may be due to inflammation of the inner wall of the uterus (), then in the first days of menstruation it rises above 37°C.

I would like to note that you can track the dynamics of basal temperature in your body during the menstrual cycle only if you take daily measurements for at least three menstrual cycles.

Normal basal temperature before menstruation

If you analyze the normal graph of basal temperature before menstruation, you can see that a few days before menstruation (2-3 days) the temperature is minimal (36.7°), during the luteal phase (14-20 days) there is a tendency for it to increase and reaches its maximum at the time of ovulation (37.0-37.2°C).

If pregnancy occurs, then the basal temperature will be the same before menstruation. In the case when a woman has bloody issues, and basal the temperature remains elevated, then we can talk about the threat of termination of pregnancy. If conception has not occurred, then before menstruation the basal temperature will be 36.9°C.

Thus, having studied the feasibility of studying basal temperature throughout the menstrual cycle, we can say that this rather simple method can allow one to suspect infertility, anovulatory menstrual cycles, inflammatory lesions pelvic organs. If a woman is planning a pregnancy, then a schedule for measuring basal temperature over three menstrual cycles will provide all possible assistance in diagnosis.

Today, women do not have the problem of calculating the days when the probability of becoming pregnant will be high: almost every pharmacy has ovulation tests, girls conduct menstrual calendars. However, there is another way to determine favorable days for fertilization - monitor your basal temperature.

Basal temperature(short form: BT) is body temperature, which a girl can measure in the vagina, mouth or rectum. Its indicators depend on the level of hormones produced by the body, and therefore in each phase of the cycle it fluctuates and can reach 37.5 degrees.

Basal temperature before menstruation is best method determining pregnancy at home. To do this, you just need to carefully monitor changes in the graph curve and know what temperature will indicate that conception has taken place.

How to measure basal temperature

Basal (rectal) temperature is not only popular and free, but also quite precise method ovulation calculations. And to avoid errors in the data, basal temperature before menstruation should be measured as follows:

BT is measured over 3–4 cycles.

What basal temperature indicators are considered normal?

Almost every woman notices slight fluctuations in body temperature. If 36.6 degrees is considered the norm, then the girl has certain days it may be higher than 37 degrees, although the general physical state will be good. Why is this happening?

During the menstrual cycle, different amounts of hormones are produced, and since BT depends on hormonal levels, its indicators will also be different.

What temperature should it be?

The most heat should be observed in the luteal phase (lasts 12–16 days) and can be between 36.8–37.5 degrees. A few days before the onset of menstruation, it decreases by several notches and on the first day of menstruation it is 37 °C.

On the last day of your period it may drop to approximately 36.3°C. IN follicular phase When the egg matures, it can be between 36.6 °C and 36.9 °C.

Each woman will have an individual basal temperature before menstruation, and therefore the indicators of the follicular and luteal phases are not as important as the difference between them. It should be 0.4 °C – 0.6 °C.

The basal temperature before menstruation in each cycle should be the same. If there are noticeable deviations in the schedule, and obvious reasons(for example, you stood up and moved before the measurement) no - you need to consult a doctor.

BBT deviations during ovulation

Rectal body temperature makes it possible to monitor your health. Depending on what irregularities in the readings the graph gave, the following diseases may be identified:

Charting rectal temperature

Since basal temperature before menstruation makes it possible to determine the days of ovulation, doctors recommend keeping a schedule. This is especially true in cases where:

pregnancy does not occur within a year;
there is a suspicion of hormonal disorders;
the girl is expected to be infertile;
you wish to have a child of a certain gender.

Also, the BT chart makes it possible to find out:

whether the egg is maturing, and on what days this happens;
whether ovulation occurred or not;
are there any disruptions in the functioning of the endocrine system;
is there a problem with reproductive organs, and if so, which one;
whether the ovaries are working correctly, whether the required amount of hormones is being produced or not;
day of next menstruation;
whether pregnancy has occurred.

A correctly drawn up schedule makes it possible to suspect a problem “at early stage“, but doctors do not make final conclusions without additional research.

The schedule should include lines such as:

day of the month;
day of the menstrual cycle;
basal temperature;
notes (it is necessary to include those factors that could influence the BT).

If the schedule indicates a malfunction in the body, you need to contact a gynecologist. You can decipher and find out the reasons for the failure yourself, but without additional tests No one can give a 100% guarantee that the diagnosis is correct.

Basal temperature monitoring technology has been used by gynecologists for a long time. It is considered one of the most reliable means to track the processes existing in the female body.

Basal temperature before menstruation is within certain limits. Its discrepancy with the usual value for a girl may indicate some changes in the functioning of the body. Therefore, this diagnostic method is considered quite informative for a medical specialist. Based on this, additional examinations are prescribed.

The concept of basal temperature

Basal body temperature (BT) is one of the reliable methods for diagnosing the functioning of body systems. It was widely used in the last century. This method examines the temperature state of the mucous membranes, changes in which are provoked by sex hormones.

Exactly this low value, which is determined, as a rule, during sleep. A woman simply needs to understand what the temperature should be during the cycle. Deviations from the standards should be a reason to visit a gynecologist.

How to measure temperature?

To obtain true results, it is necessary to measure BT strictly in accordance with existing instructions. It can be placed in the vagina, rectum or mouth. Most often this is done in the rectum, since this method is the most reliable. In this case, the result is called rectal temperature.

The measurements are presented in the form of graphs. To evaluate indicators, it is necessary to collect data for at least 3 months, and preferably more than six months. How longer woman controls her schedule, the more accurate the conclusions about the state of her health.

Measuring the secretory phase will tell a medical specialist a lot. However, a woman must follow clear rules when measuring. She should not take contraceptives. Should be removed contraceptive device. You can only protect yourself with condoms.

Measuring rules

After making the decision to measure body temperature such as rectal, it will be advisable to familiarize yourself with the technique of performing such a manipulation. It is recommended to strictly adhere to the rules, otherwise the study will turn out incorrect:

BT measurements are carried out exactly at one morning hour. And it doesn’t matter whether it’s a weekend or a workday.
It is necessary to take measurements after continuous sleep for at least 4 hours.
Without getting up, moving as little as possible, you should take a previously prepared thermometer. The less activity, the more correct the measurement result will be.
The narrow side of the thermometer must be inserted into the rectum (no more than 2 cm). You should not cover yourself with a blanket that is too thick.
When measuring, you cannot have sex in the morning until you get the result. You should go to bed as soon as possible calm state. Stress and insomnia affect the results.
You should stop drinking alcohol.
Metering rectal temperature body lasts 5 minutes. After which you can look at the thermometer and write down the readings in a notepad.

An increase in temperature before menstruation on days close to menstruation may indicate both disturbances in the functioning of body systems and some fairly common conditions for the female body.

Following all the measuring rules, it turns out quite exact result. Any stressful situations, incorrect actions during measurement and other factors will affect the graph, distorting it. Therefore, after each case of non-compliance with the measurement rules, it is necessary to indicate this in the comments.

Why use the method?

A doctor may advise a girl to monitor BT in the rectum for a number of reasons. Basal temperature during menstruation is recognized as an indicator of the health of the body. Even without a doctor's prescription, it will be quite wise to monitor the functioning of your body using the presented method. It is used for a number of reasons:

Suspicion of hormonal abnormalities.
Possible infertility.
Determining the moment for conception.
Protection from unwanted pregnancy.
Diagnosis of inflammation.
Probability of menstruation.

This allows us to draw conclusions about the processes in the female body during the entire cycle. However, the indicator before and during menstruation can tell a lot of interesting things about the health of the fair sex.

Second phase

The follicular phase on the chart pages lasts 14–20 days, depending on the individual cycle. During this period, the data normally has a value of 36.4–36.8 degrees. Normal result BT studies for the second (luteal) phase of the cycle should be different from such values.

Standards for the second phase

Basal temperature before menstruation in classic version should be in the range of 37.2–37.3 degrees. This indicates that the egg has been released from the ovary. The body has produced an egg intended for fertilization. However, what matters here is the temperature difference between the first and second phases. It should increase by no less than 0.4 degrees.

In the case when a basal temperature of 36.9 degrees is observed in the luteal phase of the cycle and before menstruation, this indicates the absence of ovulation. This situation is possible even for completely healthy women once a year or every six months. This should not cause any concern provided that you pass scheduled inspection and the absence of any illnesses.

3 days before your period, your rectal body temperature should be slightly lower. This is considered a normal decrease. The basal temperature during menstruation should be less than during the entire luteal phase.

Increase in temperature until menstruation

After ovulation occurs, progesterone production increases. This hormone influences the process of thermoregulation. Therefore, the basal temperature before menstruation can decrease within a week. After it starts, the BT value decreases again.

IN in good condition temperature during menstruation should be 37.0–37.1. Then it decreases further. If in the second phase the indicator increased, but did not fall from next menstruation, this can be caused by a number of reasons:

Inflammation of the appendages.
Endometritis.
Pregnancy.
Estrogen deficiency.

Past stress, illness, and inflammatory processes are the main factors why the value rises to 37.3 degrees. Whatever the reason causes such an increase, you need to find out it with your doctor.

When the basal temperature before menstruation exceeds 37.4 degrees, this may be an indicator of estrogen deficiency. Whatever the result is determined as a result of studies in the luteal phase of the cycle, if it is higher than normal, you should contact a gynecologist. After passing the tests, medical specialist will be able to conclude why the level may increase so much.

BT can become an indicator of estrogen deficiency. Whatever the result is determined as a result of studies in the luteal phase of the cycle, if it is higher than normal, you should contact a gynecologist. After passing the tests, a medical specialist will be able to conclude why the level may increase so much.

If the result before menstruation rises no more than 37.2 degrees, but there is no menstruation, this most likely indicates pregnancy. In this case, the increase is absolutely natural. You will need to do a test and see a doctor. The correctness of this assumption will be confirmed by the results of laboratory studies.

By monitoring the processes occurring in the body using measurements over a certain period of time, a woman and her attending physician can quickly identify abnormalities in the body’s functioning and eliminate them. Therefore, this technique is recommended for almost any girl.

One of hidden signs long-awaited pregnancy The change in basal temperature is convincing. The method, which is based on drawing up its schedule and its subsequent analysis, has been known for quite a long time. But even now, despite the diversity modern diagnostics, it is relevant and successfully used. With its help, it is possible to determine favorable successful conception days, relax and not use contraceptives on “safe” days, learn about problems in the body. Some women consider it too troublesome, others scrupulously fulfill all the requirements and find out that they will become a mother even before their period is missed. What do fluctuating basal temperature readings before menstruation signal and how can you get them as correctly as possible?

The essence of the method is how basal temperature changes before menstruation

Basal temperature should be recorded in the morning, immediately after waking up and before starting any active actions. The place where it is measured is not the usual armpit, but one of three possible places of your choice - the vagina, oral cavity, anal hole. Most experts advise giving preference to the latter, as the most convenient and giving reliable results. In order not to distort the correct picture, you should follow the simplest rules:

— carry out measurements at a time exactly set by you, after a full night’s rest, without getting out of the comfort of bed. It is not advisable to take basal temperature readings on the day before menstruation - the procedure should be preceded by a three-hour good sleep, but even in this case the readings may be incorrect;

- use a special thermometer, which is inserted rectally for 5 minutes. It is better to prepare it the day before - shake it and put it on the bedside table. You cannot exchange a mercury device for an electronic one and vice versa; the same one must be used throughout the entire cycle;

- to draw up an individual schedule, it is necessary to carefully record the results obtained immediately after the procedure, otherwise they can be forgotten, marked incorrectly and changed big picture observations;

— the presence of accompanying factors that may affect the correctness of the results, it is advisable to indicate in detail in your daily notes. The reliability of the figures may raise doubts if consumed the day before alcoholic drinks, not deep enough and long sleep, presence of intimate relationships, existing activity disorder gastrointestinal tract, stress.

The method is based on temperature changes depending on the current phase of the menstrual cycle. To understand the expected results, you should briefly familiarize yourself with what basal temperature before menstruation should correspond to the norm.

At the first stage of the cycle, the base temperature readings should be in the range of 36.3° - 36.8°. After the release of a safely matured egg, a rapid jump in temperature occurs immediately by half a degree, the resulting value is maintained almost until the beginning of the critical days. The culprit for changes in basal temperature before menstruation is progesterone, which is in a hurry to begin active preparation for possible conception. At this stage, the most reliable answer to the question of what basal temperature should be before menstruation will be 36.8 - 37.5°. The last 3 days before the onset of discharge, in the absence of conception, are marked by a decrease in discharge; the standard temperature is 37°. Summing up summary In addition to the above, we note that a sharp and rapid increase in basal temperature in the middle of the cycle signals successful ovulation, and its decrease just before the arrival of the critical days indicates the failure of conception.

The doctor suggests regularly monitoring changes in basal temperature if:

— various hormonal disorders are expected;

- within 12 months, an attempt to get pregnant ends in failure, and there is a suspicion of infertility;

- you need to determine favorable days suitable for successful conception;

- You need to check your hormonal levels different stages menstrual cycle.

For a convenient visual comparison of what basal temperature should be normal before menstruation and what its values are present in your records, it is most convenient to draw a graphic image.

Easy and quick - we draw up a basal temperature chart before menstruation

This is very easy to do - all you need is a piece of plain squared paper. In the horizontal direction, the days of the menstrual cycle are arranged in order, in the vertical direction - the readings obtained when measuring basal temperature, where the cell corresponds to 1/10 of a degree. At the level of 37°, for clarity, it is better to draw a horizontal dividing line, which will serve as the boundary between the two main phases of the cycle. In an ideal description, the graphic would look something like this:

1. Starting from the first day of menstruation until the end of discharge, the temperature gradually decreases to 36.3° - 36.6°. They remain in this range until ovulation, creating ideal conditions for the successful maturation of the egg.

2. A rapid jump in parameters above 37° convincingly indicates successful ovulation. The absence of a promotion, or the situation when it gradual increase lasts for 2-3 days, are a signal of existing problems with ovulation. Perhaps the egg has not matured, or has already died.

3. Throughout the phase monthly cycle after successful ovulation, the basal temperature before menstruation exceeds 37°, and only 2-3 days before the arrival of the critical days it begins to drop slightly. With the onset of menstruation it reaches 37°. If the compiled graph clearly shows single drops in temperature below the designated horizontal line, alas, most likely the egg has died.

The finished drawing, if all values do not go beyond the normalized limits, and the body does not have pathological changes, resembles the wingspan of a seagull - one of them represents the first phase and is located below the horizontal line, the second corresponds to the temperature indicators of the second phase and is located slightly higher.

What do deviations in basal temperature before menstruation indicate?

If conception does not happen, the last two to three days before the onset of menstrual flow, the rectal temperature decreases slightly and does not exceed 37 degrees. If they are higher, you can, while still timidly, rejoice at the onset of pregnancy; a delay will also testify in favor of this. However, not only happy event can change basal temperature before menstruation. The addition of scanty brown discharge similar to menstruation can be an ominous sign of a possible ectopic pregnancy or a warning about the existing threat of miscarriage.

If available acute inflammation in the appendages, a decrease in basal temperature before menstruation will not occur, and during critical days it will even rise to 37.3 - 37.5°. Endometritis has almost the same manifestations, only allowing the temperature to drop quite a bit before the appearance of discharge. An increase in basal temperature before menstruation to 37.4° sometimes serves as a manifestation of insufficient estrogen levels. In this case, a consultation with an endocrinologist will not hurt, but the desired pregnancy will have to wait a little. The doctor will definitely ask what basal temperature before menstruation was observed during the last cycles, so its chart will come in handy.

Any deviation from your normal temperature parameters, down or up, is a reason to visit a doctor. This applies to stable changes that were observed over at least three cycles. It is quite possible that you won’t have to worry, since basal temperature depends on many different factors - excessive excitement, incorrect measurement, moving to another area, hypothermia, fatigue, etc. When diagnosing, the doctor not only analyzes what basal temperature before menstruation was observed during the last cycles, but also takes into account important nuance- the difference between the average temperature values in different phases. Experts believe that normally this figure should be 0.4-0.5 degrees. It is the anomaly of this parameter that indicates pathology.

Basal temperature before menstruation - are the indicators reliable?

All valid values What basal temperature should be normal before menstruation is based on morning measurements. Doctors and women themselves focus on them, because the temperature obtained at other times of the day can differ quite significantly from the morning readings. The difference between evening and morning readings can be as much as a degree, and the basal temperature before menstruation the day before can reach its maximum. This cannot be considered a pathology, since it is due to the fact that any activity of processes occurring in the body reaches its peak levels in daytime. By taking measurements at the wrong time and comparing the results with what basal temperature before menstruation should be according to regulatory indicators, you can get completely unpredictable results.

Immediately after waking up and performing even minimal actions, the body is affected by many habitual influences. external conditions- psycho-emotional and physical exercise, eating and many others. They can distort the basal temperature readings before menstruation the day before and prevent the correct chart from being obtained. They cannot be avoided and taken into account when analyzing the graph, therefore, to ensure the reliability of the result, you should still measure the basal temperature before your period in the morning. You should also not use this method while taking hormonal drugs, the result will be obviously false. Some other factors may also introduce inaccuracies:

- travel and relocation, especially long-distance;

— presence of infections;

- short-term or excessive long sleep(more than 12 hours);

- sexual intercourse;

- taking certain medications (consultation with a doctor is advisable in this regard).

What basal temperature before menstruation is a reason to visit a gynecologist?

It should be noted that the reason for visiting a doctor can be not only the temperature indicator; you should also pay attention to the number and duration of both phases of the cycle. You should not neglect the advice of a specialist if:

- basal temperature is lowered, or vice versa, increased, throughout the entire cycle and does not change before menstruation;

— in the second phase, the basal temperature before menstruation increased by less than 0.4°;

— there is an insufficiently rapid rise in temperature in the middle of the cycle;

- there is an abnormal change in the time component of the cyclic phases - the first should not last longer than 17 days, and the second should last less than twelve.

Measuring and analyzing basal temperature before menstruation gives excellent results with reasonable planning of the desired family composition, complex diagnostics hormonal pathology and all kinds of inflammatory processes, detection and treatment of infertility. The effectiveness of the method is quite high, provided that fairly strict rules for measuring and comparing data of at least three cycles are observed. However, you should not make a diagnosis on your own, much less prescribe treatment, based solely on the obtained readings of basal temperature before menstruation. This should be done by a specialist, and he will prescribe additional examination. Modern methods There are enough diagnostics, and their reliability is beyond doubt, and the research method using basal temperature takes its rightful place among them.