In case of uneventful sexual delivery, a lateral perineal incision, which is an oblique incision in the perineum, is required. Because the stretching of the perineum and vaginal opening is relatively poor when a woman is pregnant for the first time, if the fetus is relatively large, it may cause perineal tearing during labor, and in serious cases, it may also cause difficulty in defecation after delivery. The lateral incision can quickly reduce the resistance of the soft birth canal and speed up the birth, which can prevent the perineum from tearing and protect the pelvic floor muscles of the mother. In fact, the healing of the epidermis of the lateral perineal incision wound is usually very fast, like the wound of a cesarean section, and the skin of the lateral incision wound usually grows in 3 days. However, it takes several months for the subcutaneous tissues and muscles to grow back together with the surrounding tissues after healing and soften to a level like other tissues. If improper care leads to wound infection, the healing time will be extended accordingly, and in severe cases, the wound may not even heal. If you need to promote healing of the lateral incision wound, you should first pay attention to a combination of good treatment and care, use medications to promote wound healing after surgery, keep the vulva clean, keep urine and stool flowing, and flush the vulva and anus after defecation. When sleeping or lying in bed, it is better to lie on the side without perineal wound to reduce the chance of malodex flowing into the perineal wound. In addition, you should pay attention to your daily diet and eat more protein, fiber and zinc-rich foods.