Women experience vaginal bleeding periodically every month for about 30 years, from the first menstrual period at puberty until the last menstrual period at menopause. So what is abnormal vaginal bleeding? Abnormal vaginal bleeding is caused by a menstrual cycle, a period, a different amount of menstruation than usual, or vaginal bleeding when you are not supposed to have a period. Many gynecological conditions can cause abnormal vaginal bleeding. Vaginal bleeding with or without abdominal pain after delayed menstruation at childbearing age should be alerted to pregnancy-related disorders such as ectopic pregnancy and pre-eclampsia. A urine HCG test and ultrasound examination can basically clarify the condition. The most common symptoms of uterine fibroids are heavy menstrual flow, long periods and shortened menstrual cycles in the reproductive age. The diagnosis can be confirmed by doing pelvic ultrasound and gynecological examination. The symptoms of dysfunctional uterine bleeding are also mainly menstrual changes, but to make this diagnosis, other diseases must be excluded before the diagnosis can be made. If the above symptoms appear during the perimenopause, it is necessary to be alert to endometrial cancer. Many patients who have the above symptoms during the perimenopause think they are menstrual disorders and do not consult the doctor in time, thus delaying their condition. Therefore, at this age, malignant diseases should first be excluded before they can be considered as physiological phenomena. If you have vaginal bleeding after intercourse, you should be alert to cervical diseases and go to the gynecologist for examination and into cervical TCT. Vaginal bleeding after menopause should be seen more actively. Bleeding or vaginal bleeding water at this time may be a malignant disease of the cervix or endometrium, and a detailed examination must be done to clarify the condition. Many middle-aged and elderly women tend to take some hemostatic drugs by themselves because they are too embarrassed to be examined. Some patients go to the hospital only after the bleeding has lasted for six months-1 year, which results in the development of early lesions into middle and late stages and delays the condition. Therefore, when you have abnormal vaginal bleeding, please visit your gynecologist actively to clarify the cause of the bleeding so as not to delay your condition.