There are four types of ovulation stimulating injections, namely, gonadotropin-releasing hormone, human menopausal gonadotropin, human chorionic gonadotropin and follicle growth hormone. 1. Gonadotropin-releasing hormone: only the gonadotropin released and synthesized by the pituitary gland can help women to ovulate, and this hormone is suitable for patients with anovulation caused by hypopituitarism and hypothalamic hypoplasia to discharge gonadotropin and assist ovulation. 2. Human menopausal gonadotropin: This hormone contains luteinizing hormone and follicle stimulating hormone, which can help the body to promote the growth, development and maturation of follicles, and is usually used in combination with human chorionic gonadotropin. 3. Human chorionic gonadotropin: it can increase the activity of luteinizing hormone and accelerate the maturation of follicles and ovulation. 4. Follicle growth stimulating hormone: it helps to promote the growth and maturation of follicles and regulate the estrogen level in the body, and is often applied to patients with hypothalamic anovulation and pituitary anovulation. Want to promote ovulation, increase the probability of conception, in addition to the use of ovulation promotion injection, but also pay attention to ensure adequate sleep, avoid overwork, ovulation promotion injection should be used under the guidance of a doctor, the use of improper may bring complications, such as generalized swelling, etc., do not use their own medication, such as after the use of the feeling of discomfort should be immediately seek medical attention.