Normally, vulvar leukorrhea should be clear, transparent, odorless, and in small amounts. There will be no bleeding underneath during non-menstrual periods. If there is bleeding under the vagina during non-menstrual periods, you must look at the situation to see what is causing it. If the bleeding occurs during intercourse, consider that there is a problem with the cervix. Usually, bleeding under the cervix occurs when there is erosion, polyps or lesions in the cervix. The bleeding time is in the middle of 2 menstrual periods, called ovulatory bleeding, there is usually a small amount of bleeding for 2-3 days, after symptomatic management, pay attention to regular rest and rest, the problem is not big. Occasional ovulatory bleeding does not indicate a problem, but frequent bleeding must be checked at the hospital to see if it is an endocrine disorder. If the endocrine disorder is caused by ovarian secretion malfunction, irregular bleeding will also occur. For example, a small amount of bleeding can also occur during the luteal phase, which is usually indicated when there is luteal insufficiency. Therefore, if there is blood under the vagina, the cause of bleeding must be found and then treated according to the situation.