A tear in the area closest to the anus in childbirth is called a perineal tear, and usually requires surgical treatment, which can be performed after the delivery of the placenta. A perineal tear refers to trauma to the soft tissue between the anus and external genitalia, and is clinically categorized according to the degree of injury as degrees I to III, with degree III being the most severe, in which the patient’s perineal skin, mucous membranes, perineal body and anal sphincter are completely lacerated. If a perineal tear is found to be at risk during labor, a lateral perineal incision is usually performed directly to help deliver the fetus. If a perineal tear occurs without a lateral perineal incision, it will need to be repaired with stitches after the placenta is delivered. It is recommended to take rest after delivery, avoid over-exertion and keep the local skin clean to avoid wound infection.