Drinking water without urine, the possible reasons are as follows: a. Drinking water only replenishes the water lost in body fluids, or still has not completely replenished the water lost in the body. Therefore, at this time, the kidneys have not produced a strong filtration effect, will not produce more urine, you need to continue to drink more water appropriately again, and observe whether the urine volume is restored. This situation generally does not have any uncomfortable symptoms and does not produce pain or suffocating sensation in the abdomen; secondly, when there is no urine after drinking a lot of water, it is possible that urine is stored in the body and not discharged because of the existence of urinary tract obstruction factors. If you are suffering from bilateral ureteral stones, the urine produced is stored in the kidneys, causing hydronephrosis, or you are suffering from prostatic hyperplasia, urethral stricture and other lesions that produce urine stored in the bladder and cannot be discharged in time. In this case, there will be obvious pain in the lower back and abdomen, accompanied by a feeling of holding and swelling, and further ultrasound examination is needed to exclude the symptoms of hydronephrosis and urinary retention. If this symptom exists, it is necessary to give indwelling catheterization or perform puncture and fistula drainage, remove the original disease and other comprehensive treatment to restore the urine volume to normal; third, if renal failure occurs, the kidney filtration stops or decreases, then the water in the body will not be excreted through the kidney filtration, and no urine can be formed, accompanied by edema of the face or limbs, accompanied by long-term reduction in urine volume. Kidney function tests should be performed to rule out kidney failure.