The side incision has healed and a lump has grown which may be a keloid, keloids need to be treated depending on the size. Keloids are a benign fibrotic disease of the skin and are common in skin wound healing. A keloid is an overgrowth of pathologic scar tissue formed by the proliferation of scar tissue after skin wound healing, and is characterized by a lesion that extends beyond the original unit of skin injury, persistent growth, and a hard, tough, and congested striated or lamellar mass. In addition, in the clinic, when the keloid is <2cm, so then the inflammatory reaction and vascular hyperplasia are dominant, it can be treated conservatively, and when the length of keloid reaches 2-10cm and the width is <5cm, it can be treated by surgical excision.