The specific reasons for bleeding again after the end of menstruation are as follows: 1. If the interval is short, such as an interval of 1 day, and bleeding again on the 2nd day, it is likely because the amount of menstruation is small and stays in the vagina near the end of menstruation; 2. Generally, avoid strenuous activities during menstruation, the blood that stays in the vagina cannot flow out immediately, and it may take an interval of 1-2 days to flow out. If the blood is more, you should pay attention to whether you have strenuous activities, or eat spicy food, hot food such as mutton and beef, or even drink can increase the refluxed menstruation. If not for the above reasons, at this time, women should go to the regular hospital for examination; 3, cervical polyps may also appear after the clean menstruation bleeding, if there are polyps do not worry, because the surgery is relatively simple, but must find the cause of bleeding; 4, sometimes endocrine reasons, if it is treated neither polyps nor other problems, it is recommended that the next menstruation 2-4 days to check the ovarian function. Whether there is sex hormone disorder. If there is, it is necessary to regulate, and then these problems will be solved.