Urologic stones can be divided into renal stones, ureteral stones, bladder stones and urethral stones according to the different parts of the stone, and its typical clinical manifestations of lumbar abdominal cramps, or accompanied by urinary frequency, urinary urgency, urinary pain and other symptoms of urinary tract obstruction and infection. High recurrence rate of urinary stones, complications, often easy to cause urinary tract obstruction or infection, leading to the destruction of renal function causing uremia and life-threatening. Dietary guidance: 1, low protein, low purine, fat and high fiber food: protein content of no more than 1g / (kg.d) eat more coarse grains. 2.Low sodium diet, less than 10g per day. 3.Less sugary and alcoholic beverages. 4, when the intake of sugar is increasing, sugar can be into the gastrointestinal tract to absorb calcium, urine calcium content increases, and correspondingly increase the absorption of calcium oxalate. Alcoholic beverages contain calcium, oxalate and guanine nucleoside, the latter metabolized to form uric acid, so that the amount of urine is reduced; long-term alcohol consumption to make the high-calcium urine, hyperphosphaturia have become more prominent. 5, limit oxalic acid and precursor intake. Foods containing oxalic acid are chocolate, strong tea, pickles, bamboo shoots, spinach, strawberries, etc. Citrate is a kind of urolithiasis formation inhibiting substances, which can prevent the formation of stones, and advocate patients to eat more citrate-containing substances, such as citrus, grapes, grapefruit. 6, the correct intake of calcium: high-calcium foods and kidney stones are negatively correlated. 7, develop good eating habits, dinner should be eaten early, before going to bed should be urinary crystal substances out of the body. 8, drink more water, daily water intake of 2000-3000ml, pediatric discretionary reduction, summer or increase after exercise. 9, accurate analysis of stone composition, targeted prevention. Uric acid stones: can serve allopurinol and sodium bicarbonate, potassium citrate and other alkaline food drugs, the use of alkaline food, to avoid excessive consumption of purine-rich foods such as poultry, meat, crustaceans, lentils, fish, black tea, cocoa, coffee and alcohol, limited to meat, fish, no more than 100g per day, avoid eating seafood, seafood, kelp and other seafood and cauliflower and animal offal. Oxalate stones: avoid foods with high calcium oxalate content such as strong tea, coffee, spinach, parsley, scallions, potatoes, tomatoes, strawberries and so on. Milk, corn, whole grains, wheat, urolithiasis or citrate combination, corn husk extract, etc. can be used. Magnesium sulfate amine: take ammonium chloride orally for stones, prevent urinary tract infections, take vinegar, acidify urine. Calcium sulfate stones: avoid eating pumpkin seeds, coffee, strong tea . Cystine stones: reduce dietary methionine. Other: when taking sulfonamides, drink more water, and add sodium bicarbonate to alkalize the urine, to prevent sulfonamides from crystallizing in the kidneys to form stones; prolonged bed rest should pay attention to the bed movement, usually strengthen the physical exercise, to promote the discharge of stones; indwelling urinary catheter need to be changed every week for 2-3 weeks.