Irregular bleeding, first of all, we have to look at the circumstances under which it occurs. First, if irregular bleeding occurs after the end of the menstrual period, it is common to have endometrial polyps, submucosal fibroids can lead to longer periods and shorter cycles, more than 20 days to come once. Generally to the hospital to do ultrasound can see whether there are submucosal fibroids or submucosal polyps of these cases, if there are symptomatic treatment. Secondly, if the process of coitus occurs, we must look at the cervix there is no problem, bleeding in the process of coitus, is not the cervix has erosion, cervix has polyps. Third, because of cervical cancer and cancerous lesions caused by bleeding, must do routine examination, according to the results of the symptomatic treatment. Fourth, because of endocrine disorders, must look at the endocrine test results. Fifth, abnormal thickening of the endometrium, there will also be such irregular bleeding, you can scrape the uterus to do diagnostic scraping. The purpose of scraping is not only to stop bleeding, but also to find the cause of the disease. So irregular bleeding must be based on the situation, to see what causes and then symptomatic treatment.