HCG (Human Chorionic Gonadotropin) is not always given after an artificial cycle transfer, depending on the patient’s condition. Human chorionic gonadotropin is a hormone necessary to maintain an artificial pregnancy. If the embryo has successfully implanted after the artificial cycle transfer, HCG is usually not needed, but miscarriage may also occur if the mother’s corpus luteum is not functioning properly, so human chorionic gonadotropin is given after the artificial cycle transfer for real-time monitoring and thus assessing the growth of the embryo. For proper post-transfer management, the doctor will decide whether or not to inject human chorionic gonadotropin after embryo transfer according to the woman’s condition, in order to promote the synthesis and secretion of progesterone and inhibit the immune response, so as to ensure that the blastocysts are successfully implanted in the uterine cavity of the mother for pregnancy, gestation and normal growth and development. Human chorionic gonadotropin is a stable drug that ensures that the endocrine environment in the body is suitable for the conception of a new life. However, HCG injections should be taken after the transplantation in strict accordance with the doctor’s instructions.