Long-term application of Recombinant Human Chorionic Gonadotropin Injection may cause some side effects in the body. Common drug side effects caused by Recombinant Human Chorionic Gonadotropin Injection are injection site discomfort, headache, fatigue, nausea and vomiting, abdominal pain, mild to moderate ovarian hyperstimulation syndrome; occasional drug side effects include depression, agitation, irritability, diarrhea, breast pain, and severe ovarian hyperstimulation syndrome; and very rarely, rash, allergic reaction, and shock. Women undergoing assisted reproductive technology, women with anovulation or sporadic ovulation can use recombinant human chorionic gonadotropin injection under the supervision of a physician. However, it is contraindicated for those who are allergic to the drug, unexplained gynecological bleeding, tumors of the hypothalamus or pituitary gland, primary ovarian failure, postmenopausal women. Before starting treatment with recombinant human chorionic gonadotropin injection, contraindications to pregnancy should be ruled out by scientific examination; even more attention should be paid to people with clinically symptomatic systemic diseases, as pregnancy may lead to aggravation of the disease. The application of any drug may cause some drug side effects, recombinant human chorionic gonadotropin injection is no exception. Therefore, if any unusual discomfort occurs after using the drug, seek professional medical help in time.