Band-aids are recommended to be torn off after about 3 hours of hemostasis, because the role of band-aids is to be used to stop the bleeding by compression, and if the blood is stopped, the band-aids can be taken off. Band-aids rely on adhesive tape to achieve the role of compression, so the breathability is not good, especially the wound in the hip, long-term sitting position will make the band-aid more impermeable, the summer heat, skin moisture and other circumstances may lead to wound infection. When 3 hours to stop bleeding after the timely removal of band-aids can first use sterile gauze for bandaging, because the gauze is more breathable and can also avoid direct contamination with external bacteria, only need to be disinfected with iodophor every day after bandaging, pay attention not to get wet. Depending on the condition of the wound, 3-5 days after the epidermal healing without any disinfection bandage work, 1 week can be normal water.