The injection of human chorionic gonadotropin can promote the discharge of eggs and help fertilization. However, it can also cause symptoms such as small abdominal pain and bloating due to increased ovarian irritation. It can also promote the simultaneous maturation of multiple eggs, increasing the probability of having multiple births, which may cause premature birth, fetal immaturity, and the use of human chorionic gonadotropin is likely to cause nausea, vomiting, slowed gastric motility, indigestion, abdominal distension, and other symptoms, and may result in the occurrence of ascites, and the incidence of ovarian or breast tumors may be increased. Some women have normal follicular development, but not normal ovulation, need to use human chorionic gonadotropin to promote follicular discharge treatment of infertility, the use of human chorionic gonadotropin need to be under the guidance of a doctor in the appropriate amount of use, so as not to aggravate the side effects of the drug.