There is still a little bit of bleeding after the menstruation, which means that the menstruation is not clean. It can be seen in many cases, the most common being endometrial thickening, incomplete shedding of the endometrium, or cervicitis and cervical erosion and other diseases. If gynecological diseases are not treated in time or are not treated thoroughly, the hormone level in the body is disturbed and will not maintain the normal physiological cycle, such as frequent anger, staying up late, or taking certain drugs, the period will be prolonged. The prolonged menstrual period is also related to the excess of damp heat in the body, the damp heat in the body will make the menstrual period prolonged, such as the usual poor health, long-term in the humid environment, eat spicy, greasy, fatty, sweet, thick and greasy products and more, it will cause blood heat, blood heat delusion and bleeding, you need to go to the hospital for abdominal ultrasound examination, and take relevant treatment measures in a timely manner.