The muscles around the vagina are torn or thinned after normal delivery, resulting in a decrease in vaginal contraction force and vaginal laxity, and in serious cases, uterine prolapse may occur. The pelvic floor muscles continue to contract for about 3-5 seconds and then slowly relax, repeat the above contraction action. Exercise to maintain the normal breathing rate, avoid the whole body force, 20-30 times for an exercise cycle; 2, interrupt urination training: urination interruption exercise when urinating, half of the urination when holding back to make urine interruption, pause 3-5 seconds and then continue to urinate. The number of interruptions can be increased gradually with the contact, and more practice will also improve the muscle tone around the vagina; 3, pelvic floor muscle rehabilitation therapy: if you feel unsatisfied with the effect after using self-exercise methods such as collecting anus and lifting air, you can go to a pelvic floor muscle rehabilitation specialist to do biofeedback therapy and electrical stimulation therapy to awaken and activate the pelvic floor muscles, speed up the recovery of vaginal and pelvic floor muscle tone and elasticity after childbirth, and improve the contraction ability of the pelvic floor muscles 4. Vaginal tightening surgery: If the above methods are not satisfactory, you can consider vaginal tightening surgery, which is performed according to the patient’s age, the degree of vaginal laxity and perineal damage.