The pain of postpartum laceration is related to the degree of laceration and the physical condition of the mother. There are four degrees of perineal lacerations, generally I degree and II degree lacerations can be recovered in 3-5 days after delivery, almost painless in a week or so, III degree and IV degree lacerations are more serious, the recovery time is relatively longer, it will take about 1 month to completely heal, the pain of the mother disappears. It is recommended that pregnant mothers should pay attention to the care of the perineum after delivery, avoid sitting for a long time, pay attention to the cleanliness and dryness of local hygiene, and wear loose and comfortable underwear. After delivery, she should pay attention to the nutritional balance of the diet, to promote the improvement of physical fitness, which will help the healing of the wound. If the perineal pain persists more strongly after delivery, consult a doctor in time to observe whether there is non-healing, poor healing, bleeding and infection of the wound.