Chorionic gonadotropin injections are gonadotropin drugs that promote and maintain luteal function in women and improve pituitary insufficiency in men. Chorionic gonadotropin injections can treat anovulatory infertility in women caused by pituitary gonadotropin insufficiency. If a woman wants to undergo in vitro fertilization, she can be injected with this medication to obtain multiple oocytes, and this medication can also be used to treat a woman if she has luteal insufficiency, functional uterine bleeding, early preterm miscarriage in pregnancy, or habitual miscarriage. If a man has cryptorchidism before puberty, he can be treated with chorionic gonadotropin injection. If there is male infertility caused by hypopituitarism, this drug can also be used, and those with long-term hypogonadotropic hormone function can be treated with a combination of other drugs. Chorionic gonadotropin injection, if used to promote ovulation will have some adverse reactions, such as stomach bloating, stomach pain, pelvic pain, etc., may also develop ovarian hyperstimulation; if the treatment of cryptorchidism, it may lead to male precocious puberty, breast development, acne, enlargement of the penis and testicles, increased growth of pubic hair, and excessive height growth. It is recommended to use medication under the guidance of a doctor, not blindly self-medication to avoid adverse effects.