A little redness in the incision of cesarean section can be considered as the normal recovery process, the body’s rejection reaction to the suture or the presence of infection, etc., which needs to be identified in time. 1. Normal recovery process: after cesarean section, the body can have a slight redness due to the local incision repair process, especially in the scar repair process, there is a slight flushing at the skin lesion. 2. Rejection reaction: after cesarean section skin suture, local redness and itching can be caused by the body’s rejection reaction to the suture. 3. Infection: patients do not pay attention to the local incision cleaning or change medicine not timely and other reasons may occur cesarean section incision infection, local redness, pain, purulent exudate outflow as well as the incision does not heal, accompanied by fever, chills and other manifestations. After cesarean section surgery, we should pay attention to the care of the incision, change the medicine in time, and if there is an infection, we should treat it promptly with anti-infection and symptomatic treatment.