A bulging bladder is a type of injury to the female reproductive system. The most common cause of bladder bulge towards the front wall of the vagina is the injury to the pelvic floor fascia and muscles that keep the bladder in its normal position caused by birth injury, which is not repaired in time, and the urethra will also bulge in severe cases. In mild cases, there are no symptoms, but in severe cases, the patient often feels lumbar pain, falling down, and feels that something is coming out of the vagina, and the swelling will shrink after urination, often accompanied by difficulty in urination and the feeling of not being able to finish urination. Bladder enlargement can be recovered by lifting the anus to exercise, or doing pelvic floor rehabilitation therapy.