Signs of fetal arrest at 4 months of pregnancy

When you are four months pregnant, you are already in the second trimester. Most of the fetal positions in the second trimester are relatively stable. However, some people experience fetal cessation of development at four months of pregnancy. As the name suggests, fetal cessation means that the embryo stops developing. This situation is a common phenomenon during pregnancy. In general, what are the signs of fetal cessation at four months of pregnancy?

What are the symptoms of fetal arrest in four and a half months of pregnancy ?

Pregnancy reactions are caused by the influence of hormones. The placenta secretes chorionic gonadotropin, which inhibits the secretion of gastric acid, greatly reduces the activity of digestive enzymes, and reduces gastric motility, thereby affecting the appetite and digestive function of pregnant women. At this time, symptoms such as nausea, vomiting, and loss of appetite will appear. It usually manifests as morning sickness, with mild nausea and vomiting on an empty stomach in the morning. However, after the embryo stops growing, the placenta will no longer secrete human chorionic gonadotropin, and there will be no symptoms such as nausea and vomiting.

Specific symptoms can be reflected in the following aspects:

1. The pregnancy reaction disappears. Pregnant women no longer experience nausea, vomiting and other reactions, and the feeling of breast swelling also decreases. Examination may reveal that the uterus is no longer continuing to grow and the weight has also decreased.

2. Vaginal bleeding. Some pregnant women will experience vaginal bleeding because the fetus is expelled from the uterus by natural elimination, and dark red blood will flow out.

Most dead fetuses can be expelled on their own after fetal arrest, but if the dead fetus has not been expelled 4 weeks after delivery, the pregnant woman may experience symptoms such as general fatigue, loss of appetite, abdominal distension, and heavy bleeding, and special attention should be paid.

3. Lower abdominal pain. Some pregnant women may experience mild pain in the lower abdomen.

4. The fetal heart rate disappears. When a pregnant woman with fetal arrest goes to the hospital for examination, it may be found that the fetal heartbeat has disappeared.

Clinically, the common causes of fetal arrest are as follows:

1. Chromosomal abnormality: Whether it is sperm or egg, as long as the chromosomes carrying genetic material are abnormal, even if a fertilized egg is formed, the embryo will not develop normally. Therefore, if there is a history of genetic disease in the family, a medical diagnosis and pre-pregnancy physical examination should be conducted before pregnancy.

2. Uterine abnormality: The overall environment in the uterus is not good, which will affect the development of the embryo. Data show that miscarriages caused by uterine defects account for about 10%-15% of clinical cases, and fetal arrest accounts for about 10%.

3. Placental factors: Placental abruption, placenta previa, etc. can all lead to insufficient oxygen supply to the placenta, causing fetal hypoxia and fetal arrest.

4. The pregnant woman herself has chronic diseases: Pregnant women have serious chronic diseases, such as diabetes, hypertension, heart disease, viral hepatitis, etc., and long-term medication will affect the life and health of the fetus.