What are the causes of threatened abortion?

In order to have a smart and healthy baby, family members should adjust their lifestyle after pregnancy, develop healthy living habits, go to bed early and get up early, work moderately, and combine work and rest to prevent threatened abortion. Let's take a look at the causes of threatened abortion:

In terms of embryo, the main reason is the imperfect reproductive cells of the father or mother. Although the imperfect reproductive cells can barely combine to form an embryo, they will eventually die early and cannot "ripen off the vine". Abortion caused by full-term delivery can actually be said to be a good thing. Because if an abnormal fetus is really born at full term, it will also be deformed or abnormal. Other reasons such as insufficient oxygen supply to the umbilical cord, amniotic fluid disease, placental virus infection and certain gynecological inflammation can also cause abortion. Malnutrition of pregnant women is also one of the causes of abortion. Some pregnant women have severe pregnancy nausea and vomiting in the early stage, resulting in extreme nutritional deficiency, which has a great impact on the development of the embryo and is prone to abortion. In terms of the mother, after a woman becomes pregnant, if she is emotionally unstable, angry, sad and other mental stimulations, it disrupts the activity function of the cerebral cortex, causing the contraction of the uterus to force the embryo out, or causing the embryo to die in the uterus. Suffering from acute infectious diseases such as influenza and rubella can cause abortion due to high fever and toxins released by bacteria and viruses. Endocrine disorders, such as corpus luteum, pituitary gland, thyroid dysfunction, and excessive uterine retroflexion in uterine hypoplasia, which hinders the development of the embryo, may cause miscarriage. Other aspects of sexual life during the entire pregnancy should be cautious. Inappropriate sexual life, especially in the early pregnancy, can easily cause miscarriage. In the second trimester, sexual life should also be moderate, avoiding sexual intercourse positions that compress the abdomen of pregnant women and rough sexual intercourse to avoid miscarriage. During the perinatal period, if the gynecological examination is done roughly, it is also one of the causes of miscarriage. This is especially important for pregnant women with weak constitutions. Drugs and certain chemical substances, such as quinine, carbon monoxide, aluminum, phosphorus, mercury, and benzene poisoning, often make it difficult to preserve the embryo. Abortion is divided into several types according to the number of days of pregnancy and the situation at the time, such as threatened abortion, early or late, complete or incomplete. Among them, threatened abortion is the most common, accounting for about 50% of all pregnancies. But only 10-15% of them actually cause miscarriage, so some can be preserved, while others are not suitable for preservation. Some women try every possible means to preserve the fetus, but still end up with miscarriage. On the surface, miscarriage seems to be a very regrettable thing, but from the perspective of genetics, miscarriage is not a bad thing, because the rate of chromosomal abnormalities in miscarried fetuses is quite high.