Keloid scars are benign skin tumors caused by overgrowth of connective tissues in the skin, which results in keloid scars protruding from the surface of the skin and irregular in shape. Keloid scarring can be triggered by many reasons, such as keloid scarring, localized irritation and infection, and trauma. Keloid hyperplasia will cause tingling, swelling, foreign body sensation, itching, etc. in the original scarred area. At the same time, the appearance is characterized by hyperplasia, enlargement and hardening. It affects the appearance of the skin, and if it occurs in the joints, it may affect the function of the joints. Keloid hyperplasia should seek timely medical treatment and take appropriate treatment measures as prescribed by the doctor.