What are the symptoms of gestational sac failure to develop?

For expectant mothers, the failure of the gestational sac to grow is a very scary word. But we say that no matter what the situation is, no one can be perfect. In life, there are still many pregnant mothers whose gestational sac does not grow. So what does it mean when the gestational sac does not grow? If the gestational sac does not grow, what symptoms will occur? So what impact will the failure of the gestational sac to grow have on women’s pregnancy?

What are the symptoms of gestational sac cessation of development?

If embryonic arrest occurs, all pregnancy reactions of the pregnant mother will gradually disappear. First of all, there will be no more early pregnancy reactions such as nausea and vomiting, and the feeling of breast swelling will also be reduced. Then there will be vaginal bleeding, often dark red bloody leucorrhea. Finally, there may be lower abdominal pain and expulsion of the embryo. The above symptoms vary from person to person. Some people may not even show any signs, but may directly experience abdominal pain and then miscarriage, or the embryo may stop developing without any symptoms and be discovered through routine B-ultrasound examination. Most pregnant women have no obvious symptoms after the fetus stops developing. Some pregnant women may have spotting, but generally have no abdominal pain, which is different from threatened abortion.

Patients with a history of amenorrhea should undergo B-ultrasound examination in the early stages of pregnancy, regardless of whether they have spotting or not, to avoid missing the diagnosis of fetal growth retardation. B-ultrasound monitors embryo and fetal development. If there is no gestational sac at ≥6 weeks, or a gestational sac is present but is deformed and wrinkled, or if the gestational sac is ≥4cm but no fetal bud is seen, or if the head and arm length of the fetal bud is ≥1.5cm but there is no fetal heartbeat, it can be determined that the embryo or fetus is developing abnormally. The latter three situations can be diagnosed as fetal growth retardation. In addition, blood β-hcG measurement can also help diagnose fetal growth retardation. If blood β-hcG is <100IU/L at ≥5 weeks, or <2000IU/L at ≥6 weeks, it indicates insufficient secretion of human chorionic gonadotropin. If the value no longer increases during dynamic observation, it can be determined that the chorionic epithelium is degenerating and the embryo is abnormal.

Reasons why the fetal sac stops developing

1. Uterine environment: The uterus is the only home for the embryo. A good uterine environment will directly affect the development of the embryo. Uterine fibroids, endometriosis, endometrium that is too thin or too thick, intrauterine adhesions, and congenital cervical relaxation may all be factors that lead to embryonic development termination.

2. Endocrine disorders: Insufficient endogenous hormones in women, such as insufficient luteal function and insufficient progesterone secretion, may cause embryo arrest and miscarriage.

3. Environmental factors: Pregnant mothers are exposed to a lot of physical factors such as X-rays, microwaves, noise, ultrasound, high temperature, etc. before or after pregnancy. Heavy metals such as aluminum, lead, mercury, and zinc are also factors that affect the implantation of fertilized eggs.

4. Chromosomal abnormality: Chromosomal abnormality is an important factor that causes the embryo to stop developing, but this only happens in a very small number of people. If this is indeed the reason, you will not be able to get pregnant. There is currently no good solution to chromosomal defects.

5. Bad living habits: Survey data from many countries show that smoking and drinking are very harmful to the development of the fetus. Women's smoking and drinking will directly affect the female endocrine and reproductive system functions. Pregnant mothers' smoking and drinking will cause fetal malformations.