Ureteral stones draining into the bladder are usually asymptomatic in patients if the stones are small in size. If the stone is large, stone activity and blockage may occur, and the patient may experience pain in the perineum, painful urination and other symptoms. 1. small stone size: ureteral stone discharge to the bladder, if the stone size is small, and no urinary tract without obstruction, most of the stones can be discharged through the urethra itself, generally do not have special symptoms. 2. Stone activity: ureteral stone discharge to the bladder, if the stone size is large, and in the bladder activity, the patient may appear perineal pain, discomfort, difficulty urinating, hematuria and other symptoms. 3. Stone blockage: If the ureteral stone is discharged into the bladder, if the stone is large in size, and if the stone blocks the outlet of the bladder during urination, the patient may experience symptoms such as sudden interruption of urination and severe pain during urination. If the ureteral stone is discharged to the bladder causing discomfort, you should go to the hospital in time for examination and clear diagnosis and treatment under the guidance of the doctor.