A. The role of drinking water on the prevention of urinary stones Drinking water can increase the volume of urine, which is significant for the prevention of urinary stones. 1, mechanical polyuria can help the crystalline salts that are about to form stones to be discharged. 2. Dilute urine can change the saturation of stone components, which means that the minimum saturation of calcium oxalate for natural nucleation will be significantly higher, which is not conducive to nucleation. Second, how much water to drink? 1, drink enough water to produce 2000-3000ml of urine per day. (1) The average person should drink 2000-3000ml of water daily to make the urine volume up to 2000ml. (2) Outdoor workers should even drink 4000-5000ml of water to make the urine volume reach the standard due to the large amount of sweating. (3) If you have a stone, you should drink more water to make the urine volume reach 2000cc or more to increase the chance of stone discharge. (4) If kidney stones have led to uremia, it is necessary to restrict drinking water. 2. It is best to drink water for a balanced amount of time each day. It is generally advocated that the time to drink water is continuous, rather than a certain period of binge drinking, which can ensure the long flow of urine. So, a small glass of water is also recommended when you get up at night to ensure a certain amount of urine during the night. 3.I’m not thirsty, do I still need to drink? Drinking water often does not stick, why? Because there is no feeling of thirst, due to long-term non-drinking, the mechanism of thirst in the body is changed, even if you do not drink water will not feel thirsty. This needs to be changed artificially, and it needs to be consciously increased to drink water in order to restore the thirst mechanism, therefore, it is necessary to drink water even if you are not thirsty.