It depends on whether the incision is made with absorbable or non-absorbable sutures, and the state of the incision is also a factor in the evaluation. If the patient uses absorbable sutures, the sutures can be removed without removal, the threads can gradually fall off on their own, and if cosmetic sutures are used, i.e., continuous subcutaneous sutures do not need to be removed, the sutures can be gradually absorbed by the body, which usually takes about three months. However, if non-absorbable sutures are used, they need to be removed, and if they are not removed, the sutures will always remain on the body. If the local use of absorbable sutures, but the incision appears obvious redness, swelling, pain, or even oozing, generally consider not except local infection or suture rejection reaction, you need to go to the hospital to find a doctor for evaluation, if necessary, also need to remove the sutures and local debridement, and then later on for dressing and oral antibiotics for treatment.