Ovarian cysts are not necessarily unvaccinated eggs, they can also be corpus luteum cysts, or ovarian chocolate cysts, etc. Ovarian cysts can be divided into two types, physiologic ovarian cysts and pathologic ovarian cysts. 1. Physiological ovarian cysts: they will disappear naturally, which is a physiological phenomenon and does not need to be treated. They usually appear during ovulation and disappear naturally after menstruation. The most common physiological ovarian cysts are corpus luteum cysts, which are formed after the follicle is ovulated, and a kind of cysts, which are formed after the follicle is mature and has not ovulated, that is, they are formed by the eggs that have not been discharged. 2. Pathological ovarian cysts: a pathological phenomenon, the most common is ovarian chocolate cysts, which is caused by endometriosis to the ovary, not caused by the ovary does not ovulate.