How many days of pregnancy does spontaneous abortion usually occur?

Spontaneous miscarriage usually occurs before 28 weeks of pregnancy, and is more common within 12 weeks of pregnancy. The causes may be related to fetal chromosomal abnormalities, maternal health status, and external environmental factors. Women are advised to pay attention to health management during pregnancy preparation and pregnancy, and seek medical attention in time if any abnormalities occur.

1. Chromosomal abnormalities in embryos

This is the main cause of spontaneous abortion, especially within the first 12 weeks of pregnancy. Most cases of chromosomal abnormalities in embryos occur randomly and may be related to errors in genetic material when the sperm and egg combine. Embryos with chromosomal abnormalities usually fail to develop normally and the mother's pregnancy ends. If spontaneous abortions occur repeatedly, it is recommended that both spouses undergo chromosomal testing to determine whether there is a genetic problem.

2. Maternal health status

Maternal illness or abnormal physical condition is also an important cause. For example, chronic diseases such as thyroid disease, diabetes, moderate to severe anemia, etc. may have adverse effects on embryonic development. Uterine malformation, cervical insufficiency and endocrine disorders can also increase the risk of miscarriage. Women who are planning to have a baby should undergo a comprehensive physical examination before pregnancy, seek timely treatment and control the disease if any problems are found, and conceive in a healthy manner under the guidance of a doctor.

3 External environmental factors

Spontaneous abortion may also be affected by some external factors, such as exposure to harmful chemicals, side effects of drugs, radiation exposure, strenuous exercise or excessive psychological stress. These factors may directly or indirectly affect the growth and development of the embryo. During pregnancy, you should try to avoid contact with dangerous environments, maintain a regular schedule, and create a safe living atmosphere.

4External force or accidental injury

Accidents such as external collisions and falls may also lead to spontaneous abortion. Pregnant women need to pay special attention to the safety of their surroundings, improve their self-protection awareness, and reduce unnecessary risks.

Abortion not only causes physical damage, but also psychological trauma. If a woman has experienced a miscarriage, she should take recovery measures both physically and psychologically. In terms of diet, she can eat more foods rich in iron and protein; exercise appropriately to promote physical recovery; psychologically, she should not blame herself and seek professional psychological counseling when necessary.

The time of spontaneous abortion varies from person to person, and the key is to seek medical attention as soon as possible if abnormalities are discovered. Regular prenatal checkups after pregnancy are the key to preventing problems. The doctor's guidance can effectively reduce the probability of miscarriage and help smoothly welcome the arrival of a new life.