Women with large crotch size after childbirth can generally recover gradually through pelvic floor rehabilitation, external and internal leg rotation, half squatting exercise, wall bracing exercise and so on. 1. Pelvic floor repair: When women are pregnant, the uterus gradually increases in size with the growth of the embryo, which will cause damage to the pelvic floor tissues and result in postpartum crotch enlargement, which is a kind of false enlargement, and can be repaired through electric stimulation therapy, magnetic stimulation and radiofrequency and other methods. 2. External and internal rotation of legs: take the supine position, separate the legs and drive the legs to do external and internal rotation through leg movement. 3. Semi-squatting exercise: take the standing position, spread your feet and shoulder width apart, then step on the elastic rope, hold the rope with both hands and put it on your shoulders, squat down with your hips, keep your thighs and calves at a certain distance, and then stand up straight. 4. Propping up the wall exercise: take a standing position, legs together, then hands on the wall, hips first outward stretching and then close to the wall, repeat for a few seconds. Postpartum crotch can generally be repaired through the above ways, if the effect of self-recovery is not good, you should consult a doctor in a timely manner, under the guidance of the doctor to restore.