Experts point out that water is the source of life, and drinking more water can prevent all stones. If patients with bladder stones can drink 2000-4000 ml of water every day, then the daily urine output is more than 2000 ml, and patients with bladder stones can effectively eliminate toxins in the body through urine. Drinking more water can also promote the discharge of small stones in patients with bladder stones. Diluting urine can prevent the crystallization of urinary calculi and delay the growth of calculi. Patients with bladder stones should avoid eating foods with high oxalic acid content, such as spinach, beets, mushrooms, potatoes, chestnuts, strong tea, coffee, cocoa, chocolate, persimmons, bayberry, etc., to prevent recurrence of stones. If you are a patient with urate, you should pay attention to eating foods with high uric acid as little as possible, such as animal offal, seafood, coffee, cocoa, black tea, chocolate, peanuts and so on. Patients with bladder stones should avoid high-fat foods, especially those with bladder stones in the onset period, and avoid high-cholesterol foods such as brain, liver, kidney, fish eggs and egg yolk. At the same time, quit smoking, don't drink, eat less meat and avoid salty and greasy food. Do not eat or drink, and limit overnutrition. Because the diet is high in protein, sugar and fat, it will increase the risk of stone formation. Patients with bladder stones should usually eat more coarse grains and vegetarian food.