Drinking water without urine may be due to physiological factors, such as the body is more dehydrated before drinking water; it may also be caused by pathological factors, such as renal failure, urinary tract obstruction, etc. 1. Physiological factors: drinking a lot of water, but no urine production, may be due to drink water before the body is more lack of water, drink in the water is not enough to reach the degree of production of more urine. 2. Pathological factors: this situation can also occur if there is a failure of kidney function, renal failure, can not discharge excess water in the body in a timely manner, resulting in a decrease in the amount of urine. There are also some patients who are caused by obstruction of the urinary tract, such as prostate hyperplasia, stones blocking the urinary tract, so that the urine produced by the kidneys can not be discharged. If there is no urine production after drinking a lot of water, you need to go to the hospital for examination in time after eliminating the physiological factors, so as to clarify the cause of the disease and then treat it.