Menstruation is a barometer of a woman’s health. Normal menstruation is cyclical and self-limiting, and usually comes as promised. However, there are many women who always have early menstruation, which is a manifestation of menstrual disorder and may be related to various factors such as physiological factors, medication factors and pathological factors. There is no need to be alarmed by the occasional early menstruation, just keep a dynamic observation. This is because the hormone level in the body has not yet stabilized, which is a normal physiological phenomenon. In addition, women with high mental stress, poor nutrition or in postpartum breastfeeding may also have early menstruation, which usually requires no special treatment. Second, drug factors Age-appropriate women who use hormonal drugs such as birth control pills may also affect the hormone level, resulting in early menstruation, the menstrual cycle will gradually stabilize after stopping the drug. Pathological factors 1. Uterus-related diseases: such as endometritis, endometrial polyps, uterine fibroids, adenomyosis, uterus-related tumors, etc. may cause early menstruation, usually accompanied by prolonged or shortened periods, abnormal vaginal discharge, fever and other symptoms; 2. Ovary-related diseases: such as polycystic ovary syndrome, ovarian inflammation, ovarian cysts, ovarian tumors, etc. These diseases may also cause early menstruation This is because the menstrual cycle is mainly regulated by the neuroendocrine hypothalamic pituitary-ovarian axis, and when ovarian diseases occur, it may lead to early menstruation and may be accompanied by abnormal menstrual cycle, hirsutism, infertility and other symptoms; 3. Hyperthyroidism, hypothyroidism, adrenocortical function, pancreatitis, pancreatic adenoma, etc. can cause early menstruation because the hypothalamic pituitary-ovarian axis is also affected by the functions of the thyroid, adrenal and pancreatic glands, etc. If these glands function abnormally, the ovaries are bound to be affected, thus leading to early menstruation or even amenorrhea. If your menstruation is early for more than 7 days and for three consecutive months, you should be alerted and go to the obstetrics and gynecology department of the hospital in time to have a sex hormone test, pelvic ultrasound and other tests to make a clear diagnosis, and don’t delay and wait for it to heal itself.