Second-degree laceration in normal delivery is not very serious and repairing the laceration with sutures is not very difficult. Second-degree perineal laceration has injured the vaginal mucosa and submucosa soft tissues, so timely laceration repair should be performed after delivery. Before suturing, care should be taken to disinfect with iodophor and gauze can be inserted into the tip of the vagina to avoid endometriosis caused by bleeding from the uterine cavity into the laceration wound. Care should be taken to achieve anatomical alignment during suturing so that the cleft wound can heal easily, and not to suture too deeply to avoid penetration of the rectal mucosa. After the sutures are completed, it is important to remove the vaginal gauze and perform an anal examination to make sure that the sutures have not penetrated the rectal mucosa. It is recommended to keep the wound area clean after delivery, use safe and hygienic toilet paper, wear loose and breathable underwear, and lie on the side that does not have a fissure when lying on the side to avoid infection. After delivery, pay attention to keep the bowel flowing smoothly to avoid constipation causing the cleft wound to open.