The red marks after the stitches are the scar at the incision, which usually disappears in about six months to a year, and some of them do not disappear on their own. Surgical methods, post-operative care and personal constitution can all lead to differences in the time for the scar to disappear. Keloid scars vary according to individual constitution, surgical methods and the degree of recovery of the incision, so the difficulty of treatment also varies. There are individual differences in the time it takes for the red marks to disappear, usually taking about six months to a year. For patients with keloid scar, it is difficult for the scar to disappear on its own after surgery, and local glucocorticoid injections and lasers are needed to lighten the scar; the scar usually disappears more easily in the case of tension-reducing suture wounds; and patients with postoperative incision infections will need to be treated for a longer period of time for the scar to disappear, so the time it takes for the red marks to disappear after stitches varies from person to person. It is recommended to consult a doctor for timely treatment of red marks after stitches to avoid adverse consequences.