The rate and role of prolactin in the female body

What is prolactin in women? This is a hormonal component, the main task of which is to stimulate the production of breast milk. Therefore, it promotes lactation.

A feature of this substance is that its concentration is prone to frequent changes under the influence of certain factors. But these changes are insignificant, so they do not conceal any danger to the health of women. But sometimes there can be a serious change in performance that threatens serious health problems. To avoid this, it is necessary to conduct a clinical study of blood for the content of prolactin and to identify exactly in which direction its level has moved.

Table of contents:
  • What is the hormone prolactin in women responsible for?
  • Macroprolactin
  • What are the optimal values ​​of prolactin, and when is analysis necessary?
  • Indicators in pregnant women
  • Prolactin for menopause
  • The need for analysis and rules for preparing for it
  • How to prepare for blood collection?
  • What do the test data say?
  • Factors affecting the data from the
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What is the hormone prolactin in women responsible for?

This substance produced by pituitary cells is important not only for the lactation process. Its sufficient amount in the female body regulates the work of many internal organs, but most of all it affects the functioning of the reproductive system.

If we consider in more detail the question of what affects prolactin in women, its main tasks are:

  • regulation of the functions of the adrenal cortex;
  • involved in the development of secondary sexual characteristics in adolescent girls;
  • stimulation of breast milk production in the newly-made mother;
  • maintaining normal levels of progesterone in the body of a pregnant woman.

What else does prolactin have for women, and what effect does it have on their bodies? After childbirth, this substance performs the functions of a natural contraceptive, and this explains the impossibility of getting pregnant immediately after the birth of the baby, and also during breastfeeding.

In addition, the hormone has a direct effect on the psychological state of a woman. This primarily applies to pregnancy and the postpartum period, when the hormonal element ensures the development of maternal instinct in a future or newly-made mother.

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What is Macroprolactin in women? This is one of the fractions of prolactin, which is not very active. But, if macroprolactin begins to "too active", it causes a sharp increase in the content of prolactin in the blood.

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What are the optimal values ​​of prolactin and when is analysis necessary?

The content of prolactin in the blood of women depends on the age group. It is also of great importance whether the girl is in an “interesting position” or not. But some deviations from generally accepted indicators, however, are permissible, because, as already noted earlier, some external factors may affect the test results.

The following is a table that lists the rate of prolactin in women by age.

No. Age of the woman Optimum values ​​(ng / ml)
1. Girls from 1 to 5 years From 2.7 to 19.5
2. Girls 6-10 years Within 2,7- 22.3
3. Teenage girls 11-13 years old From 2 to 31.6
4. Teenagers 14-17 years old In the range of 3.7 - 23.3

In girls over 17 years of age, optimal prolactin indicatorsvalues ​​are from 4.04 to 15.2.

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Indicators in pregnant women

The rate of prolactin in women preparing to become a mother depends on the trimester of pregnancy.

Thus, during the first 3 months, the hormone content can vary from 23.5 to 94 ng / ml. In the second trimester, the concentration should not exceed the values ​​of 94.0 - 282.

In the last 3 months of pregnancy, prolactin levels begin to rise steadily. At first, it can be 188 ng / ml, and closer to the birth, it can rise to 470 ng. This is quite normal, since the body produces intensive production of breast milk.

If a decrease in its level was found in the blood test for the content of prolactin in pregnant women, measures should be taken by the doctor to increase it. And vice versa: if the level is too high, it must be “knocked down”, since this deviation can negatively affect the state of both the mother and her future baby.

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Prolactin during menopause

When menstruation stops, hormonal changes occur in the female body, therefore, the concentration of prolactin also changes in menopausal women. Gradually, it decreases, and a year after the onset of menopause, it can fluctuate in the range of 25 - 400 IU / l of blood.

The norm of macroprolactin in women is measured in percent, and should not be more or less than 40% of the total content of prolactin in the body.

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The need for analysis and the rules of preparation for it

What is this analysis for the hormone prolactin in women, and what is it for?

This study is conducted most often for women, with certain indications. If there were previously problems with the hormonal background, and the patient has undergone a course of therapy, then after a certain period of time, the gynecologist or endocrinologist can prescribe a repeated test in order to look at the effectiveness of the treatment over time.

Analysis is especially necessary if there are symptoms of abnormal prolactin in women. Indications for its conduct are:

  • failure of the menstrual cycle or prolonged absence of menstruation;
  • white, milky discharge from the nipples in nulliparous patients;
  • inability to conceive a child;
  • impaired visual function;
  • frequent attacks of headaches, which occur for no apparent reason;
  • suspected tumors in the pituitary gland.

It is very important to understand how to take prolactin to a woman. This process requires careful preparation, otherwise the test results may be distorted.

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How to prepare for blood collection?

Preparation for the analysis of prolactin in women requires the following activities:

  • to stop smoking and alcohol for several days( or at least a day) before donating blood;
  • not to engage in sexual relations the day before the test;
  • on the eve and on the day of the biomaterial collection it is necessary to put on a soft bra that will not stimulate the breast;
  • the day before the analysis to avoid physical surges;
  • before the study should have a good rest, so a woman is better to go to bed early;
  • on the eve of the analysis, dinner should be made light, snacking with vegetables, or simply drinking kefir.

A few more tips on how to properly test for the content of prolactin in a woman:

  1. Blood sampling is carried out exclusively on an empty stomach. For this reason, dinner should be held no later than 8 hours before going to the hospital.
  2. The patient needs to come to the laboratory for half an hour, then sit down and get some rest. As already noted, exercise can lead to fluctuations in the concentration of prolactin.

The most optimal time for the delivery of biomaterial is morning - from 8 to 10 o'clock in the morning.

As for on what day of the cycle a biomaterial should be taken for the content of prolactin to a woman, this nuance should not be neglected. This question is important because in the wrong timing the results may be unreliable. For this reason, the patient’s blood is drawn between 5 and 8 days after the end of menstruation.

As for when it is possible to donate blood for the determination of prolactin to women who have stopped lactation, this should be done in 1–1.5 weeks after the end of the HS process. During this period, the hormonal balance will have time to return to normal. If, however, the reliability of the results will cause the doctor to doubt, the patient is re-examined after 7-10 days.

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What do the test data say?

What does a blood test for the hormone prolactin show in women? Thanks to the analysis, it is possible to identify in time the deviations of this substance up or down. If they are insignificant, and the patient herself feels well, perhaps this is only a temporary phenomenon due to exposure to external factors. But with serious fluctuations in the level of prolactin, a woman may need emergency medical intervention.

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Factors affecting the data analysis

Prolactin is also called the stress hormone in women. Consequently, its fluctuations are most often caused by stressful situations. But there are other factors that also play an important role, and to which you need to pay no less attention. These include:

  • fatigue;
  • diet;
  • frequent fasting;
  • the strongest psycho-emotional surge.

Sexual contact also causes a sharp jump in the content of prolactin in the female body. Therefore, if you are interested in how to donate blood for prolactin to women, try, if possible, to avoid exposure to the above factors. Then you don’t have to worry about the alarming results of the research( if there are no pathological causes)!