Drinking a glass of water in the body, after how long can be excreted, according to the amount of water and kidney function and decided. For patients with normal kidney function, if the total amount of a glass of water is 50-80ml, 10 minutes after drinking water, the stomach can completely empty the water, at this time the water will go through the esophagus to the duodenum, metabolized by the liver, after the glomerular filtration and renal tubular discharge, so the cycle cycle, the approximate time in 1-1.5 hours. Therefore, drinking 50-80ml of water will be excreted in the body within 1-2 hours in the form of urine, which is a normal phenomenon and a normal situation. If there is an abnormality of the endocrine and metabolic system, for example, if there is hyperthyroidism, there will be an increase in the rate of metabolism.