Ovarian chocolate cysts are ovarian endometriosis cysts, a lesion of endometriosis. These ovarian cysts are mostly found in women of reproductive age between 25-45 years old one of the most common diseases, this disease is not only tricky to treat but also causes a lot of pain to the patient. If the ovarian chocolate cyst is small and the diameter of the cyst is less than three or four centimeters, no special treatment is usually needed and regular review is possible. In cases larger than four centimeters in diameter, they may lightly affect the menstrual cycle, leading to dysmenorrhea, menstrual disorders, lower abdominal pain, periodic bladder irritation symptoms, and in severe cases, may affect normal conception and lead to infertility. Endometriosis lesions can increase in size over time and gradually erode normal tissues, causing irreversible damage to ovarian tissues and requiring surgical treatment in severe cases. Chocolate cysts are prone to recurrence after treatment, and neither conservative treatment nor medication is very effective. Surgery is recommended for severe chocolate cysts, and the surgery can be minimally invasive. In conclusion, ovarian chocolate cyst is a common benign tumor in gynecology, the severity of which depends on the size of the cyst, do not overstress. Finally, women should have regular medical checkups to detect chocolate cysts as early as possible and intervene as soon as possible.