Ovarian cysts may be related to physiological factors, or may be caused by infections, endocrine factors, surgical factors and other reasons. 1. Physiological factors: under normal circumstances, the follicles will mature and release eggs during each menstrual cycle. If the follicles do not rupture or release eggs, the follicular fluid will be retained and cysts will be formed. 2. Infection: Especially repeated pelvic infection will easily lead to the thickening of the ovarian surface and tubal wall, resulting in inflammatory exudation, thus affecting the normal function of the ovary, resulting in the hardening of the ovarian surface, and the formation of cysts due to the inability of egg cells to be discharged normally. 3. Endocrine factors: commonly found in women of childbearing age, such as the application of ovulation drugs, or during pregnancy, resulting in large changes in hormone levels in the body, resulting in the ovaries produce excessive hormones, resulting in the body’s endocrine system function abnormally, ovarian cysts may be formed. 4. Surgical factors: For example, gynecological diseases such as adenomyosis, if patients undergo hysterectomy, it may lead to damage to the reproductive system, resulting in endocrine disorders, which may cause excessive follicular growth and the formation of cysts. Ovarian cysts may also be caused by other reasons, it is recommended to consult a doctor as soon as possible, after a clear diagnosis, the doctor will guide the treatment and regulation.