How the ovaries work:
The development of the Egg takes place in the ovaries. Until puberty (11-13 years), their number reaches 400 thousand, and every day it decreases.
10 facts that may surprise you - read the material.
This was told by obstetrician-gynecologist Olga Belokon. See also: Women in Scotland will be provided with hygiene products for free Eggs age just like a woman After the age of 35, eggs have many more chromosomal abnormalities. The frequency of pregnancies decreases, and the likelihood of miscarriage increases. If a woman smokes, menopause will come 1-4 years faster.
The components of cigarette smoke cause oxidative stress and damage the DNA of ovarian Follicles. If a mother smokes while pregnant with a girl, her ovaries may be damaged.
The child has an increased risk of premature menopause in adulthood. When the egg gets old or "deteriorates" - it cannot be restored! There are no drugs that improve egg quality The eggs have a very short lifespan After the egg leaves the ovary, it will live from 12 to 24 hours. That is why time plays a large role in pregnancy planning.
Each woman was born with a certain supply of egg-cells of the 3-4th week of intrauterine development, the laying of the sex glands begins. At 12 weeks of gestation, unripe eggs - oocytes appear in the female fetus. Until 22 weeks of pregnancy, they become about 4.5-5 million, after which their number decreases and by the time they are born there are already about 2 million.
But not all follicles will be able to give offspring of 400 thousand follicles by the time of puberty only about 400 will become dominant and will be able to release a mature egg capable of fertilization, others will undergo atresia - programmed death.
From birth, the ovaries contain a number of immature, primary folliculosi. Unripe follicles contain equally immature primary oocyte. This means that in order for the egg to be fertilized, it must go through certain stages of growth, "ripening" along with the follicle - the place where it "lives".
Facts about the operation of the ovaries
There are three stages of growth and follicle formation: ️ The stage is independent of hormones and lasts about 120 days. ️ The second lasts 65 days before the antrum follicle stage. The third stage corresponds to the follicular phase of the menstrual cycle and lasts an average of 14 days. In a natural cycle, a woman grows 1, very rarely 2, there are many dominant follicular eye tents, but only one will grow more, and more than a dozen follicles die that could become, but have not become dominant, they simply “died”. Stimulation of ovulation during IVF does not reduce the supply of eggs and does not bring the climaxes, which are “stimulated”, in any case “died” during the natural cycle this month. The eggs do not “save” folliculogenesis - this is a continuous process of maturation of female germ cells. Simply put, at any time, the ovaries have follicles at different stages of maturation. Most follicles "die" and do not complete the development cycle. Even if a woman does not ovulate (pregnancy, lactation, etc.), it is impossible to "save" eggs. The only way to save eggs is cryopreservation of oocytes - "freezing". It is impossible to keep eggs in a woman's body.
