Flap thinning surgery is usually discharged in about 7 to 15 days. Flap surgery, localized flap rotation, localized protrusion, or flap bloating to win the function of the lower pot, need to be treated by flap thinning surgery. Flap thinning surgery can only repair 1/2 or 1/3 of the flap at one time, if the thinning area is too large, it may affect the blood supply of the flap, resulting in necrosis of the flap, so it usually takes more than three times of surgery, and the interval time should be about 3-6 months, in order to ensure that the flap thinning will not produce necrosis phenomenon. If the patient is in good health and has a good ability to recover, he or she can usually be discharged from the hospital about 7 days after the surgery. If there is a problem with the blood supply after the surgery, treatment will be required and it will take about 15 days before the patient is discharged from the hospital. After flap thinning surgery, you should take good care of the wound area to ensure local hygiene and avoid infection. Regular medication changes should be performed as prescribed by the doctor, and the wound should be nourished after the surgery to promote recovery. When performing flap thinning surgery, you should choose a regular hospital to avoid bleeding, infection, flap necrosis and other negative consequences due to improper operation.