The operation will not affect the fertility and remove and maintain the normal ovaries. Chocolate cyst of ovary, a kind of endometriosis, refers to the displacement of endometrial glands with growth function to the ovary. Chocolate cyst has a certain influence on fertility. Ovarian chocolate cyst retains fertility, which means that normal ovaries are removed and maintained by surgery according to the condition, so the chances of fertility are still great, and there is a certain probability to retain fertility.