At 21 weeks of pregnancy, we have entered the middle stage of pregnancy, and the development of the fetus is relatively stable. But if it is due to one's own improper behavior or taking medication, there is also a possibility of fetal arrest. Fetal arrest will inevitably affect normal pregnancy and bring great troubles to women's physical and mental health. So, what are the symptoms of fetal arrest at 21 weeks?
1. Decreased estrogen levels
When the fetus stops developing, the body will produce an immune rejection response to the embryo, and blood clots will form in the blood vessels between the mother and the fetus. Women may experience vaginal bleeding, which is the most obvious signal for the embryo to be expelled from the body.
2. Lower abdominal pain
If you have been in good health all along and suddenly experience unbearable lower abdominal pain, it is important to promptly check your hormones and combine prenatal ultrasound to comprehensively assess the fetal development.
In addition, the occurrence of embryonic arrest is also related to female endocrine disorders, so paying attention to women's health is the key to ensuring the health of the fetus during pregnancy. Meanwhile, if there is excessive inflammation in the female body, it can affect the protective effect of the embryonic disc on the fetus, allowing the virus to enter the uterus and leading to embryonic arrest. So it is necessary to check vaginal hygiene before pregnancy. If there is inflammation, the plan for preparing for pregnancy should be postponed until the body recovers.
