If you find that the suture is not removed, you need to know whether the suture is absorbable or non-absorbable. Absorbable sutures do not need to be treated, while non-absorbable sutures need further treatment. 1. Absorbable suture: If the residual suture itself is absorbable, it usually does not need to be removed, and can be absorbed within a month or so, and will not affect the human body. 2. Non-absorbable suture: If the suture is non-absorbable, the residual suture needs to be removed. First of all, you need to disinfect the wound with iodine, then lift the suture, cut the suture with scissors, and then pull it out. The patient needs to go to the hospital for the above treatment, do not do it privately, or it may lead to wound infection.