What are the reasons for no fetal heartbeat in two months of pregnancy?

Now with the continuous progress of society, many medical technologies have become much more advanced than before. Especially for pregnant women, they pay special attention to the health of the baby. The fetal heart rate can also be detected during pregnancy. However, sometimes there is no fetal heart rate after two months of pregnancy. Let us understand the specific reasons together.

main reason:

(1) Endocrine disorders

Embryo implantation and continued development depend on the coordination of a complex endocrine system. Any abnormality in any link can lead to miscarriage. During the early development of the embryo, three important hormone levels are required: estrogen, progesterone, and human chorionic gonadotropin. As for the mother, if her own endogenous hormones are insufficient, it cannot meet the needs of the embryo and may cause embryo arrest and miscarriage. The most common of these is luteal dysfunction, which can cause delayed endometrial development and a short luteal phase, thereby affecting the implantation of the fertilized egg or early pregnancy miscarriage. People with luteal insufficiency are often accompanied by other glandular dysfunctions, such as hyperthyroidism or hypothyroidism, diabetes, relative androgenism and hyperprolactinemia. These factors are not conducive to embryonic development and are closely related to miscarriage.

(2) Immune factors

The embryo or fetus in the uterus is actually an allogeneic transplant because the fetus is a combination of the genetic material of the parents and cannot be exactly the same as the mother. Immune incompatibility between mother and fetus causes the mother to reject the fetus. Common autoimmune diseases include systemic lupus erythematosus, scleroderma, mixed connective tissue disease, dermatomyositis, etc. The second is the issue of reproductive immunity. If we carry certain antibodies ourselves, it may affect the development of the embryo. In fact, the antibody testing in each hospital is different, and the doctors' opinions are also different. From our research perspective, we believe that there are four influencing factors. The first is anti-sperm antibodies. If present, they may resist the combination of sperm and egg; the second is anti-endometrial antibodies. If anti-endometrial antibodies exist, they may affect the development of the embryo and resist the development of the embryo; the third is anti-ovarian antibodies. If present, they will affect the quality of the egg; the fourth is anti-chorionic gonadotropin antibodies. This hormone is actually an important hormone that is secreted seven days after the sperm and egg combine. However, if this antibody exists in the body, it will resist the secretion of the hormone, which may cause embryonic arrest.

(3) Uterine abnormalities

Both the internal environment of the uterus and the overall environment of the uterus may have an impact on the embryo. The internal environment is the endometrium. If it is too thin or too thick, it will affect implantation. About 10% to 15% of miscarriages are caused by uterine defects. Common ones include (1) congenital abnormalities of the Müllerian duct, including unicornuate uterus, didelphic uterus, and bicornuate uterus, which result in a narrow uterine cavity and restricted blood supply. Abnormal development of the uterine arteries can lead to asynchrony of decidualization and abnormal implantation. (2) Intrauterine adhesions, which are mainly caused by intrauterine trauma, infection or residual placental tissue, leading to intrauterine adhesions and fibrosis. Hinders normal decidualization and placental implantation. (3) Uterine fibroids and endometriosis cause reduced blood supply, leading to ischemia and venous dilatation, asynchronous decidualization, abnormal implantation, and hormonal changes caused by fibroids, which can also cause pregnancy failure. (4) Congenital or traumatic cervical relaxation and abnormal cervical development caused by intrauterine treatment with diethylstilbestrol often lead to mid-term miscarriage.

The above article gives you a detailed introduction to the reasons for no fetal heartbeat two months into pregnancy. I believe everyone has a relatively preliminary understanding. Therefore, in daily life, pregnant women should pay special attention to their bodies and go for prenatal check-ups in time.