What should be the basal temperature before menstruation? Basal temperature is normal in the early stages of pregnancy. What should be the basal temperature before and during menstruation?

Basal temperature is body temperature measured in the rectum or vagina. Data on its fluctuations in a healthy woman show the body’s reaction to the changes occurring in it. Basal temperature chart during monthly cycle is important indicator, assessing the state of a woman’s health and the processes taking place in her body.

This indicator will help to accurately determine fluctuations in progesterone, which is directly related to reproductive function. The measurement takes place according to a special technique that every woman must understand. This will help you pay attention to own health and decide on planning pregnancy, childbirth, or exclude the possibility of these processes, which are undesirable for yourself. In this connection, it is necessary to know what basal temperature should be before menstruation.


It’s no secret that a woman’s well-being is entirely dependent on hormones, and maintaining a health scale requires attention Special attention. Temperatures must be measured daily and recorded. In this case, you can create a calendar menstrual cycle. Subsequently, your numbers, converted into a graph, allow you to know:

  • about the onset of follicle maturation;
  • date of ovulation;
  • O hormonal imbalances occurring in the body;
  • date of the next menstruation;
  • predetermine the offensive gynecological diseases and inflammation;
  • about pregnancy.

Temperature measurement traditional way(in the armpit) does not show the full picture and cannot help with identification issues hormonal state body. Measuring rectal temperature is a fairly accurate method. It is effective if measurements are carried out according to all the rules and regularly, for 3-4 months.

Rectal temperature before menstruation is determined individually, through long-term observations of its changes. This is necessary to obtain reliable data and eliminate errors in further planning. To collect them, measurements must be performed as follows:

  • measurement is carried out for 5 minutes with a mercury thermometer and 1 minute with an electronic one;
  • use the same thermometer;
  • the temperature should be measured during the period of awakening, early in the morning, without getting out of bed, using a thermometer;
  • note any changes or fluctuations that occur, despite colds, stress, physical exercise etc.

An accurately constructed graph and the changes that occur in it will indicate the occurrence of a problem at early stage and, thanks to this, a woman will be able to avoid serious consequences or complications of emerging diseases.

Menstruation

The existing opinion that there is a fluctuation - a decrease or increase in basal temperature before menstruation - is confirmed among doctors. They are some standard indicators that need to be taken into account when using this method. There are two options for the course of events - with and without pregnancy. Let's look at the second version first.


So, starting observation using this method on the first day of menstruation, as a rule, a normal temperature is detected. It's nothing significant indicator, which you don’t need to pay attention to, but just add it to the table. Every day it falls and you need to give importance to the last day of menstruation, when the normal temperature is from 36.3 to 36.5 ° C. This time is considered the most favorable for the start of follicle growth, under the influence of estrogen.

On last stage its formation and upon the release of a mature egg, the temperature decreases by 0.1-0.2 ° C and lasts for several days, and then rises again to 37. This means that ovulation has occurred, which provokes an increase in the indicator. During this period they created optimal conditions for pregnancy.

At the exit of the follicle, the ovarian wall is injured, forming a body that produces progesterone. The hormone is responsible for fertilization and the preparatory process in the uterus to receive the fertilized egg. This increases the basal temperature to 37.0-37.5°. The stage lasts several days and proceeds with a gradual decrease in temperature.

The normal basal temperature before menstruation ranges from 36.5-37.5°C.

With a cycle of 28 days, implantation retraction may be noticeable on the graph - this is a decrease of 0.1-0.2 ° C in the temperature indicator, noticeable 1-2 hours before ovulation and it lasts 24 hours.

Temperature readings a week before menstruation

What should be the basal temperature before menstruation? Typical temperature values ​​a week before menstruation remain stable, normal level– 36.6. This is followed by a period when the temperature before menstruation is 37 and remains so for 10-14 days. Then it gradually declines before the start of a new cycle.

Temperature readings three days before menstruation

Three last days Before menstruation, the temperature drops and this is the most unfavorable time for conception.

You can afford unprotected sex due to low pregnancy prospects.

The elevated basal temperature before menstruation gradually declines. This indicates that menstruation will begin soon. The indicator decreases from 37.1 to 36.6°C. The temperature before menstruation 36 may depend on the individual characteristics of the woman’s body.

Pregnancy

During pregnancy, the indicators are similar only until the moment when ovulation occurs. Subsequent readings of basal temperatures before menstruation depend on whether fertilization of the egg has occurred, in other words, whether conception has occurred. If events develop when pregnancy should occur after ovulation, the basal temperature before menstruation is 37°C. In this case, it does not change for three days and is favorable period for conception, and also becomes the first sign of pregnancy, and its confirmation will be standard signs and test results.


Next there is a weak nagging pain lower abdomen and sparse bleeding from the vagina. This means that conception has occurred, and an embryo has been born at the inner walls of the uterine surface. Then the numbers level out and return to their previous levels. If conception does not occur, the amount of progesterone gradually decreases, which leads to a decrease in temperature.

The day when the temperature dropped sharply and then rapidly increased is usually considered the day of conception.

Non-standard temperature readings

Some deviations from accepted norms (for example, 38°C) are individual and may mean the development of various gynecological diseases. In any case, if they are detected, you need to pay attention to your health and seek advice from a specialist, like this:

  • with a lack of progesterone, menstruation appears prematurely, rectal temperature tends to constantly fall;


  • with endometritis – a noticeable increase in temperature;

  • with inflammation of the appendages, an increase occurs, etc.


Reception oral contraceptives And hormonal pills leads to a distortion of basal temperature indicators and the use of a graph in this case will not provide the woman with reliable information.

Basal temperature during menstruation has been measured for a long time and gynecologists around the world effectively use this method to determine the state of a woman’s reproductive health.

  • always use only one of the selected measurement methods: rectal, oral or vaginal;
  • measure BT every day at the same time (7-8 am) with a maximum interval of 30 minutes;
  • continuous sleep before measurement should last 4-5 hours (minimum 3);
  • do not get out of bed, do not move or even open your eyes before the procedure and during the measurement (therefore, the thermometer and cream for lubricating its tip must be placed nearby, and the thermometer must be shaken in the evening);
  • better to apply mercury thermometer, and for measurements choose the rectal method;
  • if you want to get out of bed earlier than the usual measurement time, it is better to measure your BT before doing so, but make a note about this in a special column on the chart;
  • you need to note any factors that can affect BT levels: sex the night before, taking medications, hormonal drugs, including contraceptives, stress, travel, drinking alcohol, a different thermometer, a different measurement time, etc.

If you follow all the measurement rules, a graph of basal temperature before menstruation and in other phases of the cycle can give the gynecologist a lot of useful information.

Norm

BT charts healthy women show that it constantly fluctuates, changing before and after menstruation, as well as before and after ovulation, at the time of “implantation retraction” (if conception has taken place) and in the subsequent first days of pregnancy. In the first phase of the cycle (during menstruation), BT should be low - up to 37°C.

Moreover, on the last day of bleeding it can drop to 36.2-36.3 °C. In the follicular phase, when the egg matures, the BT norm is 36.6-36.9 °C. Before ovulation, the internal temperature may again drop by one or two hundredths of a degree, and when the egg leaves the follicle and in the following days, it begins to rise to provide the embryo with conditions for development in the event of conception.

Core temperature reaches its peak after ovulation in the luteal phase, which lasts 12-16 days. During this period, the indicator can rise to 36.8-37.5 ° C, while the difference between the two phases of the menstrual cycle should be 0.4-0.8 ° C, and individual temperature readings in women may vary.

A day or two or three before menstruation, BT again drops to a minimum (for example, 36.7 ° C). The basal temperature before menstruation is 36 9 - an ideal indicator at this time, indicating that ovulation has passed. The internal body temperature reaches this level on the eve of menstruation, if there are no diseases of the genital organs or conception has not taken place. This temperature can be in anovulatory cycle. On the first day of menstruation, BT is usually about 37 °C, but no more.

Reasons for deviations from the norm

Knowing what the basal temperature should be before menstruation, it is easy to guess that any deviations from the norm in your schedule indicate either pregnancy or pathology.

An increased basal temperature before menstruation (more than 37°C) is a reason to think about your condition.

Basal temperature before menstruation 37 2°C or more for 14-18 days - probable symptom pregnancy, even if there is bleeding.

It's best to do a test to confirm or refute this assumption and continue to take measurements and records.

Stably elevated BT before menstruation for several cycles (37.5°C) is a sign of inflammation in the appendages (ovaries and tubes), so contact your doctor immediately antenatal clinic with this schedule. In addition, the source of inflammation may be located in other organs.

But an increase in BBT just one day before your period is not necessarily a cause for concern. You could have made an error in your measurements or broken the rules. In any case, the inflammatory process cannot last 1-2 days.

Another reason for abnormally high levels before menstruation is hormonal imbalance in a woman's body. It is usually associated with insufficient secretion sex hormone estrogen. Lack of estrogen leads to infertility, so this fact should not be ignored either.

Sometimes the reason for the increase in BT on the eve of menstruation is the influence of progesterone.

Demotion internal temperature before menstruation, below normal 36.9°C, followed by an abnormal increase (above 37°C) in the first days of menstruation is also fraught with pathologies. In particular, such temperature fluctuations may indicate endometritis - inflammation of the endometrium of the uterus.

Abnormal basal temperature after menstruation before ovulation is also quite informative for a specialist. If it rises above 37°C, it is better to consult a gynecologist.

But such preliminary conclusions can be made not on the basis of a one-time BT measurement, but only under the condition of daily correct measurements.

Measurement Rules

To use BT as an informative indicator, you need to observe temperature fluctuations over several menstrual cycles, at least three. Measurement Rules:

  • It is better to measure temperature rectally - this way the influence of air temperature is less;
  • carry out the procedure every morning, including menstruation days;
  • Before thermometry, you cannot get up and engage in any activity, so it is recommended to knock down the thermometer and leave it by the bed in the evening, when preparing for bed;
  • the indicators are recorded in a notebook, and at the end of each cycle a graph is drawn (one scale is the day of the cycle, the second is the thermometer readings on that day);
  • thermometry time - 10 minutes;
  • It is advisable to wake up at the same time every day;
  • sleep before measuring BT should last at least 6 hours;
  • Lack of sleep, alcohol abuse, taking medications, and colds can cause an increase in basal temperature, so these factors should be avoided.

As you can see, the method requires high motivation and discipline. However, if you broke a rule, please indicate this in a note for the relevant day. If on this day the readings deviate significantly from the curve of the graph, they are not taken into account.

BT in the first phase of the cycle

The first phase of the menstrual cycle is called follicular, or menstrual.

The first day of the cycle is considered the first day of menstrual bleeding. Typically, the temperature in the follicular phase is low, less than 37C in the rectum.

The duration of the phase is about 14 days. The end of the first phase corresponds to the moment the egg leaves the follicle - ovulation. Before ovulation, BT normally decreases, and after it increases, which is due to the production of the hormone progesterone by the corpus luteum. The corpus luteum forms at the site of the ruptured follicle and produces progesterone within 10-12 days.

BT in the second phase of the cycle

From the moment of ovulation, the luteal phase begins, also known as corpus luteum. It lasts as long as the corpus luteum remains active (12-14 days).

BT increases after ovulation, remaining at a level approximately 0.4 C higher than before ovulation for approximately 10 days. The corpus luteum gradually degrades and progesterone levels drop. At this stage, there are 2 possible scenarios:

1. If fertilization does not occur during the existence of the egg, that is, the woman does not become pregnant, the BT decreases, and after a few days menstruation begins, and the cycle begins from the beginning.

2. If fertilization has occurred, the basal temperature rises in the period before menstruation; after this BT continues to hold on elevated level(about 37 C), and menstrual bleeding doesn't come.

Changes in BT during pregnancy

An increase in basal temperature during pregnancy occurs due to the work of the placenta. The placenta, the tissue connecting the mother and fetus, produces progesterone. Thus, although the corpus luteum is no longer active, heat supported by the activity of placental progesterone.

Progesterone continues to be synthesized throughout almost the entire period of pregnancy, but usually the mother’s body quickly adapts to this hormonal levels, and body temperature drops to normal values.

Thus, if before menstruation the temperature rises to 37 C, and then menstruation is delayed, pregnancy can be suspected. However, the fact that body temperature rises before menstruation is not sufficient to confirm the presence of pregnancy.

It should be noted that when analyzing BT, a more important role is played by the difference in temperatures before, during, and after ovulation, and not by the number on the thermometer on the day before menstruation.

That is, if the temperature before menstruation is 36.9 C, and before ovulation it was 36.7 C, this is less likely to indicate pregnancy than a reading of 36.6 C before menstruation in a woman who is characterized by a decrease in readings before ovulation up to 36.1 C.

In the first case, the difference is 0.2 C, and in the second - 0.5 C. That is why BT can be considered as diagnostic sign only if the woman monitors her constantly over several cycles.

Factors that increase temperature

Let's talk about factors that can cause an increase in basal temperature in the second phase of the cycle, and, in fact, before menstruation.

An increase in basal temperature may also have external reasons, not related to hormonal levels:

  1. Inflammatory processes in the body - viral or bacterial infection, the presence of a focus of inflammation (boil, abscess). Symptoms may be mild, especially if the infection is in initial stage or has a sluggish character.
  2. Gynecological problems.
    For example, in women with endometriosis (inflammation of the uterine mucosa), the body temperature rises before menstruation and is usually 37.0-37.3 C.
  3. In some cases, the temperature rises with severe allergic reactions.
  4. The influence of external factors listed in the list of restrictions during the period of BT measurement. These include alcohol consumption, stress, severe physical activity and overwork, active sex, medication use.

Thus, elevated temperature body a few days before menstruation is not a reliable sign of pregnancy.

  • BT - good way monitoring the functioning of the woman’s reproductive system;
  • the method helps to identify hormonal disorders;
  • fluctuations in BT throughout the cycle are caused by the work of the corpus luteum, which produces progesterone;
  • Normally, in the absence of pregnancy, 2 drops in temperature are observed during the cycle - before ovulation and before menstruation;
  • the highest BT is achieved on the day of ovulation, when the egg ruptures the follicle;
  • the absence of fluctuations in the schedule usually indicates the absence of ovulation;
  • during pregnancy, BT increases and may remain at an elevated level for several months;
  • the absence of a premenstrual decrease in BT is not a reliable sign of pregnancy.

Drawing up and analyzing a basal temperature chart has been practiced by gynecologists for a long time. Studying them makes it possible to learn a lot about female body: determine the moment of ovulation or some gynecological diseases, find out about pregnancy. Indicators of this particular temperature are of particular importance for determining the date of ovulation and for detecting pregnancy (indicators are assessed in the second phase of the monthly cycle, before menstruation) - ovulation and the onset of pregnancy can be indicated by a peculiar temperature graph before menstruation.

Methods and reasons for measuring basal temperature

Basal temperature is measured with a clean thermometer in the mouth (5 minutes), in the vagina or rectum (3 minutes).

The data is entered into a graph in which the vertical column displays the value on the thermometer, and the horizontal column displays the day of the cycle.

In order to create an accurate schedule, you must strictly follow some rules:

  • measurements begin to be performed from the first day of the cycle;
  • temperature is measured in only one way;
  • measurements are taken in the morning, at rest (without getting out of bed), only at the same time;
  • for measurement it is necessary to use a thermometer of the same design (for example, a mercury thermometer should not be replaced with a digital one);
  • measurement is performed every day.

Some external and internal factors can make the schedule uninformative: travel, reception medicines And alcoholic drinks, diseases. It makes absolutely no sense to chart your basal temperature while taking hormonal contraceptives.

Why measure and monitor basal temperature?

  • with hormonal disorders;
  • if infertility is suspected;
  • to determine days favorable for conception;
  • as a method of protection against unwanted pregnancy;
  • to identify inflammatory gynecological diseases;
  • to determine the likelihood of menstruation.

How does basal temperature change?

In the absence of deviations in the basal temperature curve, three stages are clearly distinguished.

  1. In the first (follicular) phase, the graph indicators are, as a rule, 36.4-36.7 °C. This phase lasts until ovulation;
  2. During the ovulation phase, the temperature decreases slightly and then increases abruptly by about half a degree. These values ​​last throughout the luteal phase (about 13-16 days);
  3. And already before menstruation, the basal temperature decreases slightly (during menstruation its values ​​​​do not exceed 37 ° C).

So, what should your basal temperature be before your period?

Based on the above values, it will be 37.2-37.4 °C. Experts pay attention not to digital temperature readings before menstruation, but to the difference between temperature readings in the luteal and follicular phases. In the absence of pathologies, this difference is 0.4 °C.

Deviations from this figure may indicate:

  • inflammatory processes;
  • lack of progesterone;
  • pregnancy (increased temperature before menstruation and its delay).

Various situations

The basal temperature before menstruation is 36.9 °C and there are no jumps observed throughout the second half of the cycle? This situation may indicate that the egg was immature in this cycle. This cycle is called annullary, but this has nothing to do with the diagnosis of infertility. Anvulatory cycles occur in absolutely healthy women up to 3 times a year.

If the basal temperature has increased before menstruation and its values ​​are 37.0-37.2 °C, then this situation may indicate pregnancy. It is likely that you will no longer have periods in the next 9 months. Spotting scanty discharge during the period of expected menstruation, they should alert the woman, because they may indicate a threat of miscarriage.

An increase in basal temperature before menstruation to 37.4 °C is usually associated with a lack of estrogen. In such a situation, a woman is unlikely to become pregnant and should not postpone her visit to the gynecologist.

Any irregularities in the basal temperature chart, especially if they are observed over several months, should alert a woman. Timely consultation with a specialist in such situations can prevent many diseases and increase the chances of successful treatment and recovery.

One of hidden signs a long-awaited pregnancy is convincingly indicated by a change in basal temperature. 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, anus. 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, noted incorrectly and change the overall picture of the observation;

— 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 in the case of consumption of alcoholic beverages the day before, insufficient deep and long sleep, the presence of an intimate relationship, or an 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 start 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°. To briefly summarize the above, we note that a sharp and rapid increase in basal temperature in the middle of the cycle signals successful ovulation, and a decrease in it just before the arrival of 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;

- need to be determined 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 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 by 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 perfect description The graphic will 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 an increase, or a situation where its gradual increase lasts for 2-3 days, is a signal of existing problems with ovulation. Perhaps the egg has not matured, or has already died.

3. Throughout the entire phase of the 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 decrease 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 a happy event can change the basal temperature before menstruation. Accession of the meager brown discharge according to the type of menstruation can be a formidable 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 the basal temperature depends on many different factors - excessive anxiety, incorrect measurements, moving to another area, hypothermia, fatigue, etc. When diagnosing, the doctor not only analyzes what basal temperature was observed before menstruation during the last cycles, but also takes into account an 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 the basal temperature before menstruation should be according to standard indicators, you can get completely unpredictable results.

Immediately after waking up and performing even minimal actions, the body is habitually influenced by many external conditions - psycho-emotional and physical stress, food intake 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 medications, 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 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, who 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.

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