Perineal tears are generally divided into four degrees, with degrees I-II being the more common ones, which are only skin-mucous membrane injuries. After the skin and mucous membrane laceration, the patient should be stitched up in time. After the laceration is stitched up, the patient should rest in bed and wait for the wound to gradually stop bleeding and recover. Patients should pay attention to changing tissues frequently to keep the lower body clean. Patients should wash the perineum with iodophor daily, and potassium permanganate sitz baths are also available for treatment. The perineal wound can heal in 3 days if there is no infection and other special conditions. Some patients are prone to perineal laceration of degree III-IV due to the failure to dilate the perineum during emergency delivery and the large size of the fetus. In some cases, the perineum is not dilated during emergency delivery and the fetus is huge. If the wound does not heal completely and forms an old perineal laceration, the patient will need to undergo second-stage suturing 6 months after delivery, when recovery is slower but less problematic. In the past, some patients experienced fecal incontinence because the perineal laceration was not well sutured. This is no longer the case, and if it is not well closed, second-stage suturing can be performed without long-term incontinence.