After Lipo knife surgery, localized debridement will occur about one week after the surgery. The debridement will cause the following clinical symptoms: first, bloody vaginal discharge or light red discharge; second, there will be dark brown flakes in the discharge; third, the bloody vaginal discharge will turn into a small amount of bleeding over time. In clinical practice, it is recommended to keep the vulva clean, not to take a bath, but to wash it with water once or twice a day and to change the sanitary napkin regularly. If the amount of vaginal bleeding is close to the amount of menstruation, it is recommended to go to the hospital for appropriate hemostatic treatment.