What causes missed abortion? There are 5 factors that affect it

Missed abortion is caused by congenital abnormalities of the embryo, and genetic factors are also very important. Long-term exposure to external factors such as smoking and drinking can also lead to miscarriage. Exposure to too many chemicals can also cause miscarriage. Vigorous exercise and excessive external force can cause miscarriage in pregnant women.

Abortion is a serious phenomenon. No matter what kind of abortion it is, it will have a great impact on pregnant women. Missed abortion is a type of abortion. Many people do not understand what is going on and want to avoid it. So, what causes missed abortion?
1. Congenital abnormality of the embryo <br/>About 60% of early miscarriages are caused by this reason. There are many reasons for congenital abnormality of the embryo, such as genetic diseases, viral infection during pregnancy, food or chemical poisoning during pregnancy, etc. Some people say that miscarriage is a process of survival of the fittest under the conditions of nature, which seems to make sense.
2. Genetic factors : Embryonic maldevelopment caused by abnormalities in the number or structure of chromosomes is the most common cause of miscarriage, especially miscarriage within the first three months of pregnancy, in which chromosomal abnormalities account for 50% to 60%.
3. Influence of adverse external factors <br/>Excessive smoking, drinking, exposure to chemical toxins, such as lead, cadmium, radioactive substances, and severe noise and vibration. The above harmful factors may directly act on the fetus and cause its death, or affect the fetus through the placenta. Severe mental stimulation such as fright and emotional excitement can cause internal environmental imbalance in pregnant women, induce uterine contractions and lead to miscarriage. Impacts and falls on the lower abdomen or vulva can cause the placenta to detach from the uterine wall and cause miscarriage. Frequent sexual intercourse during pregnancy, strenuous exercise, high temperature environment and important physical labor are also one of the causes of miscarriage. Gynecological or surgical operations during pregnancy, such as ovarian cancer resection and appendectomy, can stimulate uterine contractions and cause miscarriage due to traction during the operation.
4. Maternal diseases <br/>The mother’s poor physical constitution or serious illness, such as acute infectious diseases, severe anemia and malnutrition, reproductive tract malformations and reproductive organ tumors, endocrine dysfunction, incompatibility of maternal and fetal blood types, etc., can endanger the fetus and cause miscarriage.
5. Father's factors <br/>In recent years, it has been found that an asymptomatic auxospermia can cause miscarriage. Research results show that 10% to 15% of male semen contains a certain amount of bacteria, which can affect pregnant women and cause miscarriage of the embryo.