1, people with scar constitution should try to reduce the chance of injury. When suffering from acne, folliculitis and furuncle, don't squeeze it forcibly, and don't use strong drugs such as strong acid and alkali to avoid leaving sunken or hypertrophic scars. Use drugs safely under the guidance of a doctor.

2, emergency trauma patients, in the case of excluding life-threatening, should try to see a plastic surgeon for debridement and suture or tissue defect repair, in order to minimize the factors of scar formation.

3, plastic surgery should strictly abide by the principle of aseptic surgery, surgical incision should be along the direction of dermatoglyphics or skin tension line, should be located in a relatively hidden part. The operator should move gently, the instrument should be sharp, and use fine needles and thin wires as much as possible. Keep the wound clean and free of foreign bodies. The suture should be accurate and adhere to the principle of tension-free suture.

4. Patients should avoid sun exposure after operation and eat less spicy food and legumes. To understand the common sense of scar formation and prevention, and actively cooperate with doctors for treatment.