Scar loves to patronize people with scar constitution (we can know whether there is one in daily life), even if the wound is small, it will leave obvious exaggerated scars. Therefore, people with scar constitution had better avoid caesarean section. If you must do it, you can ask the doctor for help and guidance. The more advanced surgical method is to cut the skin horizontally at the upper third finger of pubic symphysis, and then use continuous intradermal suture and absorbable intestinal suture after operation. Because the transverse incision is parallel to the skin, the tension relaxation line is used, and the tension at the wound is very small. After healing, there is no need to remove the thread, and the incidence of scar is greatly reduced. Once caesarean section is decided, nutrition should be strengthened before and after delivery. Fresh fruits, vegetables, eggs, milk, lean meat, skins and other foods rich in vitamins C, E and essential amino acids can promote blood circulation and improve epidermal metabolic function. Avoid spicy foods such as peppers, onions and garlic to prevent itching. Some chronic diseases, such as malnutrition, anemia and diabetes. , are not conducive to wound healing, but conducive to scar formation, so we should actively treat. Thoroughly clean the whole body before operation and use antibiotics preventively; Postoperative logistics dressing change, keep the wound and the surrounding environment clean and dry, so as to avoid infection and hematoma and delay wound healing. Avoid strenuous activities before and after removing stitches, and avoid excessive stretching or lateral bending of the body; When resting, it is best to take a lateral position to rest, which can reduce the tension of the abdominal wall. Immediately after stitches are removed, it can be effectively prevented from scarring by wrapping with silicone elastic bandage or elastic mesh sleeve. This is because continuous pressurization can cause local hypoxia of scar, thus inhibiting scar growth. About two to three weeks after the surgical incision is scarred, the scar begins to proliferate, and at this time it turns red, purple and hard, protruding on the skin surface. From three months to half a year, the proliferation of fibrous tissue gradually stopped, the scar gradually flattened and softened, and the color turned dark brown. The scar will itch at this time. Especially when you sweat a lot or the weather changes, it often itches until you scratch your blood. Therefore, among scar patients, there is a saying that pain is easy to bear and itching is unbearable. The correct treatment is to apply some topical drugs, such as triamcinolone acetonide, dexamethasone and so on, to relieve itching. Never scratch it with your hands, wipe it with clothes, or scald it with water. This will only aggravate local irritation, cause inflammatory reaction of connective tissue, and cause further itching. In addition, don't expose the scab of the knife edge prematurely, otherwise it will take away the epidermal cells that are still in the repair stage, and even tear off the dermal tissue, which will stimulate the wound to itch. It is also necessary to avoid sunlight and prevent ultraviolet rays from stimulating pigmentation. Use physical therapy methods such as wax therapy and magnetic therapy to reduce scars. For obvious hyperplasia, scar constitution, or some stages of scar growth, doctors can treat scars by injection as a treatment or as a means to relieve symptoms. People with scar constitution are not suitable for trauma treatment, and local injection of drugs is often used to soften scars to relieve symptoms. For scars with obvious hyperplasia, in order to prevent abnormal hyperplasia or as minimally invasive treatment, drugs are usually injected into scar tissue. Injection treatment of scar is a relatively conservative treatment method, which can not make scar disappear or shrink, but only improve function, calm scar and soften scar. Severe scars can only be removed by surgery (direct removal or skin flap repair).