Women with frequent and urgent urination and normal urinary routine may have overactive bladder syndrome, also known as urethral syndrome, in women. Under normal circumstances, the bladder is more elastic, and the normal bladder capacity can reach about 400 ml. Some individual female patients usually like to hold urine, which in the long run will cause the sensitivity of the bladder to rise, the bladder becomes less elastic, and the bladder capacity becomes smaller, so each time the urine volume is low, and the number of urination is high, which is the principle of overactive bladder syndrome. This is the principle of overactive bladder disorder.