The pain inside the incision after 8 years of cesarean section may be caused by nerve pulling pain, foreign body stimulation, inflammation stimulation, endometriosis and other reasons. 1. Nerve pulling pain: there is scar formation at the incision, and the local skin elasticity is weakened. Muscle movement and pulling in the course of women’s actions can lead to pain in peripheral nerve conduction. 2. Foreign body stimulation: Cesarean section incision suture use of absorbable thread, if the thread is not absorbed, the formation of local foreign body stimulation, resulting in wound pain. 3. Inflammatory stimulation: Inflammatory infection at the C-section incision will stimulate the incision and cause pain. 4. Endometriosis: During cesarean section, the endometrium is ectopic to the peritoneum, subcutaneous and other locations, and with the menstrual cycle bleeding, it gathers under the skin and causes pain. There are many possible reasons for the pain inside the incision after 8 years of cesarean section, and you need to consult a doctor in time for examination, to clarify the cause of the disease, and treat it under the guidance of the doctor.