Women don't wait to be too old to get pregnant again
Author: Tengfei
medical research shows that the best reproductive age for women is 24~28 years. However, with the general postponement of marriage and childbearing age in cities, there are more and more elderly parturients. In some hospitals, 50% of the primiparas over 30 years old, and more than 10% of the pregnant women over 35 years of age. At the forum hosted by the Guangdong Provincial Association of eugenics, "women's infertile women's early birth and Health Forum", many experts have warned that women's excessive marriage and late childbirth will not only increase the number of eggs. The risk of gynecological diseases such as nest cancer, endometriosis and breast cancer is also harmful to the fetus.
professor of Obstetrics and Gynecology, affiliated to the three hospital, affiliated to Zhongshan University, Professor of gynecology and obstetrics, affiliated to Zhongshan University.
in the pregnancy and lactation period, the ovary, the endometrium are in the rest state, equal to "put a big holiday", and the elderly infertility has no such opportunity, even if the ovary "tired", but also had to "fight spirit work", naturally more easily tired and sick. In addition, progesterone secretion during pregnancy will increase significantly, and it will play a role in the inhibition of endometrial cancer. In the course of childbirth, with the delivery of the placenta, the uterus has been cleared up, and it can also play an anti cancer role.
in urban areas, breast cancer has become "rich disease". A survey in Japan shows that women who are not pregnant have a 70% higher risk of breast cancer than women who have had babies. Why? Professor Li Xiaomao pointed out that women who have experienced full term delivery have increased the content of female three alcohol in pregnancy, while female three alcohol has an obvious protective and anti-cancer effect on the body. In addition, the blood chorionic gonadotropin during pregnancy can activate anticancer substances in the body, and can inhibit the occurrence of breast cancer. At the same time, postpartum lactation is also conducive to maintaining patency of mammary ducts and reducing the incidence of breast diseases.
do not let the eggs miss the best shelf life
"too late to give birth will affect the fetus." Professor Xiao Xiaomin, Professor of Obstetrics and Gynecology of the First Affiliated Hospital of Jinan University, said that in China, primiparas over 35 years old are "primiparous". The greater the age of a woman, the more the egg cells are affected by various rays and harmful substances, and the chance of mutation of their genetic material will increase. A person's egg cell is born. After the first meiosis in the infancy, the rest period can last for several decades, and the birth time is too late, which means that the egg has passed the best "shelf life", the quality will decline, and the possibility of spontaneous abortion, premature birth, dead fetus and congenital malformation will be doubled. Increase. "Studies have shown that the rate of spontaneous abortion for women over the age of 35 will be 3 times higher than that of 25~29 year old pregnant women. At 35 years of age, the odds of Down syndrome in the fetus are 1/350, and by the age of 48, the incidence of Down syndrome has changed to 1/10.
elderly primipara will increase the risk of fetal distress and fetal macrosomia. It has been found that the perinatal morbidity and mortality of mother and child over 35 years of age are obviously increased, and the primary maternal age is one of the main reasons for the increase of neonatal mortality. Experts point out that the function of the pelvis and ligaments of the elderly pregnant women is degenerate, the elasticity of the soft tissue is weakened, the uterine contraction is weak, and the position of the fetus is not positive. It is easy to cause prolonged labor and cause fetal distress and increase the rate of cesarean section.