Vaginal bleeding after menstruation is often caused by the following reasons: 1. Endocrine disorders, often due to estrogen deficiency, so that the uterine lining irregularly shedding, so that the vaginal bleeding. In this case, you can supplement estrogen treatment, or in the second day of menstruation, blood test sex hormone six, according to the results and then give treatment. You can also take oral Chinese medicine to regulate, such as taking motherwort capsule, blood flow break tablets to give treatment. 2, due to the inflammation of the endometrium caused by the endometrium becomes brittle, irregular shedding, resulting in vaginal bleeding, you can anti-inflammatory treatment. Therefore, if vaginal bleeding occurs again after menstruation, the cause should be found out and it is not difficult to treat according to the cause.