If you drink a lot of water, you will have the urge to urinate when your bladder is full. When the body has finished drinking water, the water will be absorbed into the blood circulation through the intestines, and during the process of blood circulation, the body will absorb part of the water into the cells, and for the water that cannot be absorbed will be excreted through the kidneys to form urine. Each person urination time is different, for young patients, urination after drinking water is about an hour; for the elderly because of the decline in organ function, urination time is about half an hour; for patients with diabetes or patients with prostate enlargement, the time will also be shortened. In addition, the degree of water shortage in the human body is different, if the body is severely dehydrated, some will have urine only after two or three hours after drinking water, if it is summer drinking water, because the summer heat sweating more, the body is seriously dehydrated, so after drinking water will not have urine for a short time. So the time to urinate after drinking water also reflects the physical condition of the person and the metabolic level of the kidneys. Patients need to be aware that if the body has abnormal urination, such as frequent urination, urinary urgency, etc., they need to promptly seek medical attention to clarify the presence of pathological factors.