Some women have to postpone childbirth because of the pressure of life. There are also some women who want to have a "second child" while they are still alive because of the open second child policy. Whether because of the pressure of life or related policies, in fact, women are in a passive position in fertility.

However, the reports on the fertility of older women are too optimistic now. You will often see topics such as "70+ elderly women are naturally pregnant" and "elderly women challenge the world record" on the news. It will give women an illusion that even if they are not born now, they will be able to give birth in their sixties and seventies.

In fact, after understanding some medical knowledge, we will find that women's fertility is limited, and the older women are more difficult to have children, and the production risk of older women is great. ...

There is no simple link from pregnancy preparation to delivery for elderly women!

Older women, it is difficult to get pregnant!

Female fertility presents an inverted U-shaped curve. Women who enter puberty during the first menstrual period begin to ovulate and have initial fertility; Women's physical development is mature, and their fertility reaches its peak at the age of 24-29. When the last menstruation enters menopause, women stop ovulating and lose their fertility.

The difference is that before the age of 24, women's fertility is getting better and better, and after entering the age of 30, women's fertility begins to decline. Especially after the age of 35, women's fertility will enter a period of sharp decline, and it will come to an abrupt end around the age of 50.

For elderly women, both natural pregnancy and IVF will face the problem of pregnancy difficulties. The most important reason is the decline of ovarian function and the decrease of egg number.

Women have more than 6,543,800 follicles at birth, but this number will only decrease rather than increase, leaving only about 300,000 follicles in adolescence. After that, in each menstrual cycle, follicles will mature and excrete, but most follicles are not exhausted during ovulation, but continue to degenerate and atresia.

Therefore, with the increase of women's age, the number of follicles available for fertility is getting less and less. Both natural fertility and IVF are faced with the problem that a clever woman can't cook without rice. Because of the decrease of follicles, the probability of pregnancy naturally decreases.

Older women have high complications during pregnancy!

For elderly women, even if they can get pregnant successfully, they will face more challenges and risks during pregnancy.

The risk of abortion is high: a Danish study on female reproduction shows that the probability of abortion for women over 42 years old after pregnancy is > 50%;

The risk of ectopic pregnancy is high: relevant data show that the risk of ectopic pregnancy in women aged 24 is 1.4%, and the risk of ectopic pregnancy after 44 years old is 6.9%;

Complications during pregnancy: with the increase of delivery age, the incidence of intrahepatic cholestasis, pre-eclampsia, premature rupture of membranes, pregnancy-induced hypertension and pregnancy-induced diabetes mellitus is higher;

Older women, dystocia!

Production itself is a very risky thing, whether young or old, although medical technology is more and more developed now, the risk of childbirth can not be ignored. For elderly women, childbirth is a bigger challenge, both physically and psychologically.

The elasticity of pelvic floor muscles and perineum in elderly women is not as good as that in young women, and the uterus often contracts weakly, causing problems such as prolonged labor, massive bleeding and dystocia. Moreover, for women over 40 years old, the probability of cesarean section and placental problems will greatly increase.

The health problems of elderly women and newborns are very serious!

For elderly women, if the biggest problem is the difficulty of pregnancy, then the most unacceptable problem is that newborns will face more health problems.

With the increase of women's age, the probability of chromosome errors during egg maturation will also increase. When aneuploidy occurs, there will be too many or too few chromosomes in the egg, which will directly affect the quality of the egg. Even if this egg is fertilized successfully, it is more prone to miscarriage, and even if it is produced successfully, it is more prone to neonatal diseases. This is why older women are more likely to give birth to babies with congenital diseases!