The scar is mature, and the pigment is faded or lost. It may be necessary to remove the scar again, reshape the suture incision, and actively prevent scar treatment after healing.

(Dr. Yan Gang from the Second Affiliated Hospital of Kunming Medical University solemnly reminds me that it is impossible to fully understand the condition because I can't see the patient face to face. The above suggestions are for reference only. Please go to the hospital for specific diagnosis and treatment under the guidance of a doctor! )