Why do symptoms of threatened miscarriage occur?

Symptoms of threatened abortion are usually caused by a variety of reasons, including genetic factors, environmental influences, physiological abnormalities and underlying diseases. When symptoms such as vaginal bleeding and mild abdominal pain occur, you should be alert and seek medical attention immediately to protect the health of the mother and fetus.

1. Genetic factors

Chromosomal abnormalities in the embryo or fetus are one of the common causes of threatened miscarriage. About 50%-60% of early miscarriages are related to genetic abnormalities. These abnormalities may be inherited from the parents or may occur naturally during embryo formation. When the embryo itself has serious chromosomal problems, it may not be able to continue to develop healthily. For couples with a family history of genetic diseases, genetic evaluation or genetic testing can be performed before pregnancy to reduce the risk.

2 Environmental factors

An unfavorable environment can have an adverse effect on embryonic development. For example, long-term exposure to toxic substances such as secondhand smoke, heavy metals, radioactive substances, etc., staying up late for a long time or overwork may increase the risk of miscarriage. In addition, drinking, smoking or drug abuse during pregnancy are also closely related to miscarriage. These unfavorable environmental factors should be avoided as much as possible during pregnancy, and attention should be paid to choosing a safe and healthy lifestyle.

3 Maternal physiological factors

Abnormalities in the structure of female reproductive organs such as uterine malformation, cervical insufficiency, or hormonal imbalances such as progesterone deficiency may increase the risk of miscarriage. Pregnant women over 35 years old will lead to decreased follicle quality and are more likely to have embryo arrest or miscarriage. In order to prevent related problems, women who are preparing for pregnancy should have regular prenatal checkups and monitor hormone levels and receive necessary treatment under the guidance of a doctor.

4. Trauma or inappropriate activities

Abdominal impact, strenuous exercise or weight bearing may induce threatened miscarriage. Although light exercise is safe, pregnant women should avoid participating in high-risk sports. Excessive psychological stress may also have an adverse effect on pregnancy through endocrine system disorders. During pregnancy, you should get enough rest and have moderate physical activity, such as prenatal yoga.

5 Potential disease factors

Certain diseases may affect pregnancy safety, such as polycystic ovary syndrome, thyroid dysfunction, immune system problems such as antiphospholipid syndrome, or infections such as toxoplasmosis. These causes need to be diagnosed through prenatal examinations and related medical examinations, and necessary treatments should be carried out. For example, drugs can be used to regulate thyroid function, low molecular weight heparin can be used to improve antiphospholipid antibody positivity, or antibiotics can be used to treat infections.

For pregnant women, threatened abortion is a serious health warning signal. It is recommended that if symptoms such as vaginal bleeding and abdominal pain occur, go to the hospital immediately for a detailed examination to clarify the cause and take early intervention to avoid adverse consequences. In health management before and during pregnancy, attention should be paid to genetic counseling, regular physical examinations, healthy diet and improvement of living habits to protect the safety of mother and fetus in all aspects.