Chocolate cyst is a common gynecological disease. If chocolate cyst is not treated in time, it will probably lead to infertility. So it is necessary to take precautions at ordinary times. Experts are invited to introduce the causes of chocolate cyst, hoping to help women prevent it. ? The main causes of chocolate cyst are: excessive mental stress: because modern women are in fierce competition, excessive mental stress will lead to autonomic nerve dysfunction for a long time, which will easily affect the endocrine regulation of the human body, lead to premature decline of ovarian function, decrease of estrogen secretion, and lead to the early arrival of menopause. Sexual harassment: it is also an important cause of ovarian chocolate cyst. Many chocolate cysts in the ovary are closely related to excessive estrogen secretion in the body, mainly occurring in adolescent girls or menopausal women. In addition, environmental pollution and personal emotions also have a certain impact on women's ovaries. Endocrine factor: This factor is a common cause of ovarian chocolate cyst. Although the ovary is small, it is an important organ for producing eggs, ovulation, endocrine hormones and balancing endocrine. Moreover, chocolate cyst of ovary mostly occurs in reproductive age with strong endocrine, so it is considered to be related to endocrine disorder. ?