Causes of miscarriage in three months of pregnancy

The reasons for abortion in three months of pregnancy are more complex, mainly including embryo factors, maternal factors, external environmental factors, abnormal immune function, lifestyle factors, etc. 1. Embryo factors If the embryo has chromosomal abnormalities and other problems, its developmental potential is often poor, it is difficult to continue normal growth, and it is easy to lead to abortion. This is the most common reason for early abortion. 2. Maternal factors The mother suffers from systemic diseases, such as severe infection, high fever, severe anemia, chronic liver and kidney diseases, hypertension, etc., which may affect the blood perfusion of the uterus and placenta, thus causing abortion. Endocrine abnormalities, such as luteal insufficiency, hypothyroidism, etc., can also interfere with embryo implantation and development. In addition, there are uterine abnormalities, such as septate uterus, unicornuate uterus, etc., or submucosal myoma of uterus, intrauterine adhesions, etc., which will affect the growth space and blood supply of embryos. 3. Excessive exposure to toxic and harmful substances such as radiation, arsenic, lead, formaldehyde, etc., or exposure to adverse environments such as high temperature and high noise, may cause damage to embryos and increase the risk of abortion. 4. Immune dysfunction The immune incompatibility between the mother and the fetus may cause maternal rejection of the fetus, leading to abortion.5. Lifestyle factors Pregnant women are overworked, nervous, stressed, smoking, alcoholism and other bad lifestyles, which may also induce abortion. When an abortion occurs, you should seek medical attention in time for a comprehensive examination to clarify the cause and prepare for subsequent pregnancy preparations. At the same time, you should pay attention to maintaining good living habits and health during pregnancy, and regular check-ups to reduce the risk of abortion.