Caesarean scar is a trace left on the wound after operation, which is generally white or grayish white, smooth and hard. 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. There are new nerve endings in the scar, but it's chaotic. The scar hyperplasia period lasts about three months to half a year, and the fibrous tissue hyperplasia gradually stops, and the scar gradually flattens and softens. When the color turns dark brown, the scar will be itchy, especially when I sweat a lot or the weather changes. I often feel itchy until I scratch the scar epidermis and see blood. But, young mothers, don't be afraid. The itching of scars will gradually disappear with time. Nursing care after scar repair by caesarean section: 1. Don't expose the scab of incision prematurely after operation. Premature and hard scabbing will take away the epidermal cells that are still in the repair stage, and even tear the dermal tissue, which will stimulate the wound to itch. 2. Apply some topical drugs such as triamcinolone acetonide and dexamethasone to relieve itching. 3, avoid sunlight, prevent ultraviolet stimulation to form pigmentation. 4, improve diet, eat more fruits, eggs, lean meat, skin and other foods rich in vitamins C, E and essential amino acids. These foods can promote blood circulation and improve the metabolism of epidermis. Don't eat spicy food such as pepper, onion and garlic. 5. Keep the scar clean and hygienic, wipe the sweat in time, don't scratch it with your hands, wipe the scar with clothes or burn it with water to stop itching, so as not to aggravate local irritation, promote inflammatory reaction of connective tissue and cause further itching.