Chocolate cyst patients may cause women to be prone to miscarriage. Chocolate cysts are cysts formed when the endometrium ectopically spreads to the ovary. The ovary on the diseased side may have different degrees of impaired function, which may lead to insufficient luteal function and decreased progesterone levels after ovulation, and therefore may lead to miscarriage easily. For women with ovarian chocolate cysts, if the size is larger than 5cm, it is recommended that the patient should be treated before getting pregnant; for patients with smaller sizes, it is recommended that they get pregnant as soon as possible, and after pregnancy, the development of the embryo needs to be closely monitored, and progesterone supplementation is needed to protect the fetus if necessary. For patients with chocolate cysts, it is recommended to go to a regular hospital in time, complete the relevant examinations, under the guidance of a professional doctor to prepare for pregnancy, and if necessary, active treatment. Consult your doctor for more information.