The menstruation is early for more than 10 days related to the following reasons, which require specific examination and treatment: 1. Consider that it is caused by endocrine disorders, if the female neuroendocrine dysfunction, it may lead to unstable hypothalamic-pituitary-ovarian function, thus appearing various problems such as early or postponed menstruation. 2. It may be the appearance of organic lesions, such as pelvic inflammatory disease, endometritis or tumors and other various 3.It may be caused by other physical diseases, such as abnormal thyroid function, diabetes, liver disease, etc. These diseases will directly affect your menstruation. 4.It may also be caused by external environmental factors, dietary factors or psychological factors, when the body changes, it may also The early menstruation may be caused by changes in the body.