Postpartum blowout is caused by the relaxation of the pelvic floor muscles that occurs due to improper exertion during vaginal delivery or birth injury. Under normal circumstances, recovery takes six months, but there are patients who cannot recover. Patients can improve through the following methods: 1, postpartum pelvic and pelvic floor muscle rehabilitation, carried out 42 days after delivery, commonly used electrical stimulation therapy, biofeedback therapy, etc. 2, anal contraction exercise, postpartum on the seventh day can be carried out, the patient to take the seat or supine position, conscious contraction of the anus, maintain 5 seconds and then relax, so repeated, even do 10 groups.