Why does menstruation often come ahead of schedule

Clinically, if menstruation always comes in advance, the cycle is less than 25 days, which is an abnormal phenomenon. This situation is often caused by the following reasons: First, due to endocrine disorders, due to long-term fatigue, emotional instability or anxiety, environmental changes, may cause luteal atrophy in advance, so that menstruation is advanced. Second, due to a certain disease caused, such as endometriosis, uterine submucosal myoma or uterine muscle wall larger myoma, endometrial polyps, endometrial inflammation, endometrial hyperplasia or atypical hyperplasia, will cause menstruation to come early. In clinical to do detailed examination, such as in the second day of menstruation blood test sex hormone six, it is recommended to do B-ultrasound examination, understand whether there is a possibility of tumor uterine accessories, according to the results must be given treatment.