Urinary stones is a common disease in urology, the incidence and recurrence rate is high, many friends ask how to prevent stones: 1, usually should develop the habit of drinking more water because more water can increase the volume of urine, dilute the crystals in the urine, so that it is easy to discharge out of the body, even if the formation of small stones, can also be flushed out from the urine early. In addition to a normal diet, it is best to drink more than 2,500 ml of water a day, and the amount can be increased if you sweat a lot. If the local water source is high in calcium, you should pay more attention to softening before drinking. 2, do not overeat because excess nutrition will cause high protein, high sugar and high fat diet, which will increase the risk of stone formation. You should eat more coarse grains and vegetarian food as appropriate. 3.If you are a stone patient After the stone is cured, for oxalate stone patients, in order to prevent stone recurrence, you should avoid eating foods containing high oxalic acid, such as spinach, beets, mushrooms, potatoes, corn, strong black tea, coffee, cocoa, chocolate, persimmons and prunes; if you are a urate patient, you should pay attention to eat as little as possible foods containing high uric acid, such as animal offal, seafood, coffee, cocoa, black tea, Chocolate and peanuts, etc. 4, for patients with stones, annual physical examination, to know whether the stones recur.