Other reasons, such as insufficient oxygen supply to umbilical cord, amniotic fluid disease, placental virus infection and some gynecological inflammation, can also cause abortion. Malnutrition of pregnant women is also one of the causes of miscarriage. Some pregnant women have severe nausea and vomiting in early pregnancy, which leads to extreme lack of nutrition, which has a great impact on the development of embryos and is easy to miscarry.
In addition, after pregnancy, if emotional instability, anger, sadness and other mental stimuli disturb the activity function of cerebral cortex, cause uterine contraction and force out the embryo, or make the embryo die in the uterus. Suffering from acute infectious diseases such as influenza and rubella will lead to abortion due to high fever and toxins released by bacterial viruses. Endocrine disorders, such as dysfunction of corpus luteum, pituitary gland and thyroid gland, and excessive retroflexion of uterus in case of uterine dysplasia, cause uterine cavity to hinder embryo development and may cause abortion.
Other aspects: Be cautious about sex life throughout pregnancy. Improper sexual life, especially in the early pregnancy, can easily lead to miscarriage. In the second trimester of pregnancy, sexual life should also be moderate to avoid oppressing the sexual intercourse position and rough sexual intercourse of pregnant women's abdomen, so as not to cause abortion.
When doing gynecological examination in perinatal period, if the technology is rough, it is also one of the reasons that easily cause abortion, especially for pregnant women with weak constitution. Poisoning by drugs and some chemicals, such as quinine, carbon monoxide, aluminum, phosphorus, mercury and benzene, often makes it difficult to protect embryos.