Whether or not postpartum anterior and posterior vaginal wall dilatation can be self-healed is related to the patient’s condition, some patients may be self-healed, and some patients cannot be self-healed. In the process of delivery, due to the pressure of the fetus first exposed for a long time, the pelvic floor muscles and fascia overstretch to reduce the elasticity, and often accompanied by part of the pelvic floor muscle fibers torn, resulting in the anterior and posterior walls of the vagina deviate from the original anatomical position, there may be a mild anterior and posterior walls of the vagina, through the postnatal rehabilitation exercise, the pelvic floor tissues recovered, the anterior and posterior walls of the vagina may be cured by itself. If the pelvic floor muscles and their fascia are severely torn, resulting in pelvic floor laxity. If the pelvic floor muscle and its fascia are severely torn, resulting in pelvic floor relaxation, coupled with early participation in heavy labor during puerperium; or too many deliveries with short intervals, the pelvic floor muscle is difficult to return to normal, resulting in a more serious anterior and posterior bulging of the vaginal wall, and the function of urination and defecation are impaired to varying degrees, which can not be cured by itself, and can not be treated conservatively, and requires timely surgical treatment. Therefore, women with post-partum anterior and posterior vaginal wall dilatation should receive standardized treatment in a timely manner, so as not to delay the condition and lead to adverse consequences.