Detailed analysis of the causes of threatened abortion

Symptoms of miscarriage before 28 weeks of pregnancy make people feel worried. The scarcity of children now makes us choose to preserve the fetus without hesitation, because miscarriage will make every mother and family regretful and even painful. In fact, not all miscarriages are bad things. Let us analyze the causes of threatened miscarriage in detail:

Threatened abortion refers to a small amount of vaginal bleeding that occurs in early pregnancy and stops and starts, accompanied by mild lower abdominal pain and backache. It may lead to miscarriage, or it may continue pregnancy after proper treatment. Threatened abortion is mainly caused by the weak constitution of pregnant women, or fatigue or trauma.

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 an abnormal fetus, if it is really born at full term, will also have deformities or abnormalities. Other reasons such as insufficient oxygen supply to the umbilical cord, amniotic fluid disease, placental virus infection and certain gynecological inflammations can also cause miscarriage. Malnutrition of pregnant women is also one of the causes of miscarriage. Some pregnant women have severe nausea and vomiting during pregnancy in the early stages, resulting in extreme nutritional deficiencies, which have a great impact on the development of the embryo.

After a woman becomes pregnant, if she is emotionally unstable, angry, sad, or other mental stimulation, it will disrupt the activity of the cerebral cortex, causing the uterus to contract and force the embryo out, or causing the embryo to die in the uterus. Acute infectious diseases such as influenza and rubella can cause miscarriage due to high fever and toxins released by bacteria and viruses. Endocrine disorders, such as corpus luteum, pituitary gland, and thyroid gland dysfunction, as well as excessive uterine retroflexion in uterine hypoplasia, can cause the uterine cavity to hinder the development of the embryo.

During the second trimester, sexual life should be moderate, and sexual intercourse positions that compress the pregnant woman's abdomen and rough sexual intercourse should be avoided to avoid causing 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 protect the embryo. Abortion is divided into threatened, early or late, complete or incomplete, etc. according to the number of days of pregnancy and the situation at the time. Among them, threatened abortion is the most common, accounting for about 50% of all pregnancies. However, only 10-15% of them actually miscarry, so some can be preserved, while others are not suitable. Some people try every means to preserve the fetus. In the end, they still miscarry. On the surface, miscarriage seems to be a very regrettable thing, but from the point of view of genetics, miscarriage is not a bad thing. Because in the miscarriage of fetuses, the rate of chromosomal abnormalities is quite high.