What causes miscarriage?

Abortion is divided into accidental abortion and induced abortion. Artificial abortion generally refers to going to the hospital for induced labor and aborting the fetus. There are many reasons for unexpected miscarriage. Many friends are not quite clear about the specific reasons that lead to miscarriage. Generally speaking, unexpected miscarriage may be caused by abnormalities in the pregnant woman's body that lead to fetal death and thus miscarriage. It may also be caused by the pregnant woman eating the wrong thing or falling, both of which may lead to miscarriage. Let’s take a closer look at this below.

There are many reasons leading to miscarriage, the main ones are as follows.

1. In early spontaneous abortions due to genetic defects, 50%-60% of embryos have chromosomal abnormalities, most of which are abnormalities in chromosome number, followed by abnormalities in chromosome structure. Numerical abnormalities include trisomy, triploidy and X monosomy; structural abnormalities include chromosome breakage, inversion, deletion and translocation. Most embryos with chromosomal abnormalities end in miscarriage. A very small number may continue to develop into a fetus, but some functional abnormalities or combined malformations may occur after birth. If a miscarriage has occurred, the products of conception are sometimes just an empty gestational sac or a degenerated embryo.

2. Environmental factors There are many external adverse factors that affect reproductive function, which can directly or indirectly cause damage to the embryo or fetus. Excessive exposure to certain harmful chemicals (such as arsenic, lead, benzene, formaldehyde, chloroprene, ethylene oxide, etc.) and physical factors (such as radiation, noise and high temperature, etc.) can cause miscarriage.

3. Maternal factors (1) Systemic diseases: Acute illness during pregnancy and high fever can cause uterine contractions and lead to miscarriage; bacterial toxins or viruses (herpes simplex virus, cytomegalovirus, etc.) enter the fetal blood circulation through the placenta, causing fetal death and miscarriage. In addition, pregnant women suffering from severe anemia or heart failure may cause fetal hypoxia and may also cause miscarriage. If a pregnant woman suffers from chronic nephritis or hypertension, the placenta may become infarcted and cause miscarriage.

I believe that friends who have read the above content have some understanding of the reasons for miscarriage. Female friends, please be careful when you are pregnant, because miscarriage not only means the loss of a life, but also causes great harm to the woman herself. In severe cases, it may lead to infertility or even endanger life. During pregnancy, remember not to take medicine at will, and seek timely treatment if you are sick.