The early arrival of menstruation can really catch ladies off guard, but have you ever seriously thought about what causes early menstruation? Does it mean there is something wrong with your body? Let’s find out together. The menstrual cycle is generally 28 to 30 days, about 7 days early or delayed is still the normal range, if beyond this range can be to find the reason. 1, emotional fluctuations are common, emotional fluctuations are very large, in addition, life, work pressure is relatively large, these reasons will be impressed by the female endocrine system problems, deviating from the normal value, resulting in early menstruation. 2, the body has some kind of pathology If a woman suffers from a gynecological disease, tumor or thyroid disease, etc., then it will also lead to early menstruation, or twice a month menstruation. Therefore, after finding the phenomenon of early menstruation, it is best to go to the hospital for a detailed examination, not to be taken lightly. 3, change of living environment If there is a change in the external environment such as moving, it may also lead to disruption of women’s menstrual cycle due to non-adaptation. 4, endocrine disorders lead to early menstruation This is a common cause of early menstruation, the main process is the hypothalamus abnormalities, the pituitary gland followed by abnormalities, and eventually lead to women’s ovarian function is unstable, so the menstruation appeared early or delayed symptoms. 5, birth control ring Some women wear birth control rings in order to avoid unwanted pregnancy. Some women have a special body type or wear the birth control ring unscientifically, which can also lead to early menstruation. 6, fertility situation What is the cause of early menstruation, it has a lot to do with women’s childbearing age. Studies have found that if a woman’s first pregnancy is older and the number of pregnancies is less, then the number of female ovulation will increase accordingly; if a woman has been breastfeeding for a longer time, then the time of menopause will go backwards and the number of ovulation will be less. If menstruation is early, but the volume and color of menstruation is in the normal range, then this is normal, which has a lot to do with the time of pregnancy and the number of pregnancies. 7, drug influence Clinical evidence shows that some women in taking some drugs can lead to early menstruation, or even menstrual cycle, endocrine disruption. The common drugs are contraceptives, chemotherapy drugs and treatment of the psychiatric system, etc. These drugs lead to inflammation of the female reproductive organs or tumors, and even malnutrition, etc. However, after stopping these drugs, the women’s menstrual cycle will gradually return to normal.