Causes of abnormal growth of HCG in test tube infants
IVF refers to the process of in vitro fertilization and embryo development through artificial assisted reproduction technology, and then implantation of the embryo into the mother's uterus for pregnancy. HCG (human chorionic gonadotropin) is a hormone secreted by embryonic tissues in early pregnancy, which plays an important role in maintaining early pregnancy. However, abnormal HCG growth may increase the risk of IVF. The reasons for the abnormal growth of HCG in IVF will be described in detail from four aspects below.

Abnormal embryonic development
Abnormal embryonic development is a common reason for abnormal growth of HCG in IVF. In the process of embryo development, if there are chromosome abnormalities or gene mutations, the embryo may not develop normally, and the production of HCG will also be affected. For example, chromosomal abnormalities in embryos may lead to the termination of early embryo development or spontaneous abortion, thus leading to abnormal growth of HCG.
In addition, abnormal embryo implantation can also cause abnormal HCG growth. In the process of IVF implantation to the uterine wall, if problems are encountered, such as incorrect embryo implantation position or abnormal endometrial function, the production of HCG will also be affected, leading to abnormal growth of HCG.
Such problems need to be diagnosed by means of embryo biopsy, gene testing, etc., in order to take appropriate treatment measures in time.
Luteal dysfunction
The corpus luteum is an endocrine gland formed in the ovary, which plays an important role in the synthesis and secretion of progesterone, including HCG. Luteal dysfunction is another common cause of abnormal HCG growth in IVF infants.
The dysfunction of corpus luteum may lead to the early decline of corpus luteum, thus affecting the production of HCG. For example, early luteal degeneration can be caused by insufficient ovarian function, ovarian cysts or endocrine disorders. These problems can be diagnosed by means of blood hormone test and ultrasonic examination, and then appropriate treatment measures can be taken.
Pregnancy related complications
IVF may encounter some complications during pregnancy, which may also lead to abnormal growth of HCG.
For example, ectopic pregnancy is a serious complication of pregnancy. Extrauterine pregnancy refers to the implantation of the embryo outside the uterus, which is common in the fallopian tube. In this case, the growth rate of HCG is usually slow or stagnant, and often accompanied by abdominal pain and other symptoms.
Other pregnancy related complications, such as amniotic infection and placental insufficiency, may also cause abnormal HCG growth. These problems need to be diagnosed and treated through clinical symptoms, ultrasound and other laboratory tests.
Summary
The abnormal growth of HCG in IVF mainly results from abnormal embryonic development, luteal dysfunction and pregnancy related complications. For test tube babies, the growth of HCG is of great significance to the success of pregnancy. Therefore, it is crucial to find and solve the problem of abnormal growth of HCG as soon as possible. Doctors and patients should closely monitor the HCG level of IVF and seek medical help in a timely manner, so as to carry out appropriate diagnosis and treatment, improve the success rate of IVF and pregnancy health level.