Preventing urinary incontinence after delivery starts during pregnancy. Kegel training is usually started when symptoms of incontinence appear during pregnancy. If you do not have symptoms of incontinence, you can perform the exercises at 28 weeks of pregnancy. Usually pelvic floor muscle exercises, i.e. anal lift or Kegel exercises, are performed after 24 hours of natural delivery or 72 hours of cesarean delivery, and comprehensive pelvic floor rehabilitation therapy such as electrical stimulation as well as biofeedback is performed 42 days after delivery. The specific methods of postpartum pelvic floor muscle rehabilitation exercise can be divided into one type of muscle exercise and two types of muscle exercise. Type I muscle exercise is to slowly contract the perineum and anus to maximum force for 3-5 seconds, and then slowly relax for 3-5 seconds. The second type of muscle exercise is to contract the perineum as well as the anus with maximum force and fast, then immediately relax, contract and relax continuously, contract and relax 3-5 times, and then relax for 6-10 seconds. In terms of regimen, 10-15 consecutive times each time, repeated 3-5 times a day, for 6-8 weeks is a course of treatment. Performing Kegel exercises before delivery not only reduces the incidence of postpartum incontinence, but is also helpful during vaginal delivery. This is because the pelvic floor muscles are exercised during Kegel exercises, which can increase the success rate of vaginal delivery.