Cesarean delivery helps the fetus to be delivered quickly from the abdomen and avoids the squeezing of the fetus on the perineum, so it does not affect the perineum much. The perineum is the external genital organ of the woman. During a natural birth, the perineum is the last part of the fetus to be delivered. During vaginal delivery, the fetal head dilates the perineum, causing perineal congestion and edema. It is crucial to protect the perineum during vaginal delivery to avoid perineal tears. The process of cesarean delivery can avoid damage to the perineum. After performing a cesarean section, there are no significant changes in the perineum. However, it is important to note that if compared to the non-pregnant state, even with a cesarean delivery, a slight laxity of the perineum can occur. During pregnancy, the enlarged uterus causes an increase in abdominal pressure, which acts directly on the perineal area and can cause perineal edema. The local edema can be further aggravated by the obstruction of local venous return. Pigmentation of the perineum can occur due to changes in hormone levels during pregnancy. After cesarean delivery, changes in the perineum will gradually return to the non-pregnant state. However, it is still looser than when there was no pregnancy. In summary, there will be a slight laxity in the perineum after cesarean section.