What causes threatened miscarriage?

Threatened abortion is mainly caused by the combined effects of genetics, environmental factors, physiological factors, trauma and pathological reasons. It is necessary to identify the causes in time and take appropriate intervention measures.

1Genetic causes

About 50%-60% of threatened miscarriages are related to chromosomal abnormalities in the embryo, which is one of the most common causes of miscarriage. If the embryo has chromosomal abnormalities during development and cannot continue to develop normally, it will cause miscarriage. It is recommended that couples who are planning to have a baby undergo genetic counseling and related examinations before planning a pregnancy, especially if there is a history of genetic diseases in the family. Genetic testing can screen for potential genetic factors, thereby effectively reducing risks.

2 Environmental factors

Exposure to toxic and harmful environments during pregnancy, such as long-term exposure to chemical pollutants such as benzene, heavy metals, smoking, alcoholism or taking harmful drugs, can easily lead to poor fetal development and cause threatened miscarriage. Irregular lifestyle, excessive work pressure, overwork and long-term exposure to high temperature or radiation environments may also increase the risk of miscarriage. Improving the living environment, maintaining a good work and rest routine, and avoiding contact with high-risk substances are very important for women who are preparing to become pregnant or are already pregnant.

3 Physiological factors

Poor maternal health, such as uterine dysplasia such as uterine septum, bicornuate uterus, corpus luteum insufficiency or immune problems, may result in the failure of the embryo to implant or develop smoothly, leading to miscarriage. It is recommended to conduct a comprehensive physical assessment before pregnancy, including gynecological examination and hormone level testing. Once the functional problem is confirmed, it can be improved through medication such as progesterone supplementation, hormone therapy or surgical treatment.

4 Traumatic factors

Trauma or improper physical activity in early pregnancy may affect fetal development and cause miscarriage. For example, abdominal impact, heavy lifting, or strenuous exercise. If you must work or exercise during pregnancy, it is recommended to adjust the intensity, avoid strenuous movements, and pay attention to abdominal protection.

5 Pathological factors

Some diseases, including endocrine disorders such as thyroid dysfunction, diabetes, serious infections such as rubella, toxoplasmosis, and hypertension, may affect the growth environment of the embryo and induce miscarriage. Regular prenatal check-ups should be performed during pregnancy. If any discomfort is found, medical treatment should be sought in a timely manner to reduce the risk of miscarriage through disease management. For example, thyroid function problems can be regulated by drugs, and infectious diseases need to be treated with antibiotics according to the type of bacteria.

If you experience symptoms of threatened abortion such as abdominal pain or vaginal bleeding during pregnancy, you should seek medical attention immediately. Through ultrasound examination and blood hormone level monitoring, targeted treatment can be given after a clear diagnosis. Some mild threatened abortions can save the fetus after early rest and drug treatment.