If your fingernail is lifted off accidentally, you can choose to handle it by yourself or go to the hospital for nail extraction surgery according to the actual situation. 1. Self-treatment: If the lifted area is small, you can first cut off the lifted fingernail and press the affected area with sterile gauze for 3~5 minutes to reduce blood oozing out, then use iodine povidone to sterilize the affected area after stopping the bleeding, and then bandage up the affected area with clean sterile gauze. 2. Go to the hospital: If the fingernail lifts up a large area, more than 50%, then you need to go to the hospital in time for nail extraction surgery, debridement and other treatments. After treatment, the patient should keep the area dry and clean to avoid secondary infection, and pay attention to observe the condition of the affected area, and consult a doctor immediately if there is any discomfort.