If the menstrual cycle advances by 7 days, or 23 days, just once, no special treatment can be given for the time being, and observation is sufficient for the time being. However, if the menstrual cycle is significantly earlier than usual, it is necessary to carry out appropriate follow-up examinations, and the diagnosis and treatment of abnormal uterine bleeding should be carried out according to the procedure. First of all, hysteroscopy should be performed to find out whether there are abnormal endometrial growths, such as polyps, submucosal fibroids, atypical hyperplasia or malignant hyperplasia, etc. At the same time, endometrial diagnosis should be performed. At the same time, endometrial scraping will be performed, and subsequent treatment will be based on the pathologic results of the scraping. If the disease is benign, progesterone is often needed to adjust. In the case of malignant hyperplasia, subsequent surgical intervention is required.