The rates of progesterone in women are determined by age, the phase of the menstrual cycle and the duration of pregnancy.. This is not any exact value, but an acceptable range, since the level of the hormone in the body changes almost constantly under the influence of physical activity, emotional state, diet and even the time of day.

Progesterone prepares the endometrium for the implantation of a fertilized egg, reduces the activity of the immune system, which prevents rejection of the embryo, under its influence, cervical mucus thickens, forming a kind of plug that protects the uterine cavity from foreign agents.

Progesterone is one of the most important steroid hormones, which has a complex effect on the female body.. It not only regulates the reproductive system, but also takes part in the synthesis of some other hormones, in particular corticosteroids.. However, despite the importance of the hormone for the body, all its functions, as well as the normative indicators and prerequisites for their change, remain completely unexplored..

A decrease in the level of progesterone in postmenopausal women leads to a deterioration in the condition of the skin and the formation of wrinkles The hormone progesterone: the norm in women In everyday practice, gynecologists and endocrinologists use tables that indicate the norms of progesterone in women for different clinical situations.

Progesterone rates in pregnant women:.

Gestational age.

Progesterone rate, nmol / l.

1-13 weeks.

from 8.9 to 468.5.

14-27 weeks.

from 71.5 to 303.2.

27-40 weeks.

from 88.7 to 771.5.

Progesterone rates depending on the phase of the menstrual cycle:.

Cycle phase.

Indicators of progesterone, nmol / l.

follicular phase.

less than 3.6.

ovulatory phase.

from 1.52 to 5.45.

luteinizing phase.

from 3.1 to 66.8.

postmenopausal.

less than 3.19.

Thus, the range of progesterone levels in normal women differs in rather wide limits.. In this regard, only a doctor can correctly interpret the result of the analysis, since normal progesterone for one patient can be high for another or low for a third..

Secretion of progesterone In the female body, progesterone is produced by the corpus luteum of the ovary and the adrenal glands..

The corpus luteum is a temporary endocrine gland that forms at the site of a bursting Graaf vesicle. The corpus luteum develops rapidly and reaches maturity on day 21 of the menstrual cycle with a 28-day duration. This is the so-called corpus luteum of menstruation.. If pregnancy has not occurred, then from day 22 it undergoes a gradual regression with the formation of a whitish scar (white body) in its place.

If a woman has confirmed progesterone deficiency, at the stage of pregnancy planning in the second phase of the menstrual cycle, she is prescribed drugs containing this hormone.

In cases where conception occurs, the corpus luteum continues to develop (corpus luteum of pregnancy) during the first 12 weeks of pregnancy. Then, as the placenta forms, the functions of the gland secreting progesterone pass to it and the corpus luteum gradually fades away.

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