Drinking water soon after wanting to urinate may be physiological factors, acute urinary tract infections, diabetes, uremia and other factors lead to. 1. physiological factors: if a short period of time to drink a lot of water, the kidneys may filter out more urine, there will be an increase in the frequency of urination as well as the phenomenon of increased urinary output, is a normal physiological performance. 2. Acute urinary tract infections: acute cystitis, for example, may be related to poor hygiene, can lead to bladder mucosal sensitivity is too high, after drinking water, a small amount of urine generation, the sensitive parts of the stimulation, there will be a feeling of urination, accompanied by urinary urgency, urinary pain and other symptoms. 3. Diabetes mellitus: when diabetes mellitus exists, it will increase the blood sugar in the body, leading to osmotic diuresis in the human body, and increase the amount of urine generated, there will be the phenomenon of urination, which may be accompanied by fatigue, thirst, and excessive drinking and other symptoms. 4. Uremia: usually leads to a decrease in the level of antidiuretic hormone in the body, after drinking water, the amount of urine production increases, it will be a short period of time after drinking water to urinate, may also be accompanied by extreme thirst, dry skin, drinking a lot of water and other symptoms. There may be other reasons for wanting to urinate soon after drinking water, and patients should seek timely medical examination and early treatment.