Both chorionic gonadotropin and heparin are given after IVF to promote the smooth implantation of the embryo, but their indications are different. Chorionic gonadotropin is chorionic gonadotropin, which has a similar effect to luteinizing hormone and can promote the development of the corpus luteum. Chorionic gonadotropin can promote the secretion of progesterone, and promote the smooth implantation of the embryo. Heparin, on the other hand, is indicated for patients with a history of multiple miscarriages and insufficient arterial blood supply to promote embryo implantation and development. Prolonged use of heparin may cause nausea, vomiting, abdominal distension and other adverse symptoms, and is contraindicated in patients with uterine fibroids and hypertension. Prolonged use of heparin may also cause liver and kidney dysfunction, spontaneous bleeding and other adverse symptoms, and is contraindicated in patients with severe acute infectious diseases or allergy to heparin. Therefore, it must be used reasonably under the guidance of doctors. IVF transplantation must be carried out under the guidance of doctors in regular hospitals and reasonable treatment.