Increase fluid intake: Drinking more water can reduce urinary tract ionic supersaturation and prevent recurrence, while promoting the discharge of small stones. Calcium supplementation should be reasonable and moderate: relevant studies have shown that people with high calcium intake do not have a greater risk of kidney stones than those with low calcium intake. In fact, if the diet is deficient in calcium, low calcium can make osteolysis greater than osteogenesis, blood and urine calcium are increased, and also make the absorption of oxalic acid and excretion through the urinary tract increase, so that oxalic acid and calcium deposition will occur, and promote the generation of urinary stones. Therefore, the diet should increase the intake of calcium-containing foods, such as milk, fish and shrimp, kelp, etc. Be careful not to take calcium supplements to prevent urinary stones, as excessive calcium supplements may increase the risk of urinary stones. Limit excessive oxalic acid intake in the diet: children with calcium oxalate stones should avoid chocolate, coffee, almonds, peanuts, beets, bamboo shoots, spinach, potatoes, wild rice, black tea, cocoa powder and other foods rich in oxalic acid. Among them, bamboo shoots and spinach have high oxalic acid content. If you do need to eat these things, you can first boil them in boiling water, still after cooking, you can remove some of the oxalic acid. The next is tea, tea in green tea, black tea contains the most calcium oxalate; Pu-erh tea is the second, white tea, chrysanthemum tea, jasmine tea at least. Limit excessive protein intake: protein needs to be digested and absorbed into amino acids in order to be used by the body, while the aromatic amino acids (tryptophan, phenylalanine, tyrosine, etc.) can be transformed into glycolate, the indirect predecessor of oxalic acid, and glyoxalate, the direct predecessor. High protein diet (poultry, red meat) can cause excessive urinary calcium and urinary oxalate excretion, reduce urinary citrate excretion, lower urinary PH and increase the chance of urinary stone formation, so we should pay attention to control the excessive intake of animal protein in the diet. Increase the intake of citric acid-rich fruits: Citric acid is a natural urinary stone inhibitor. Foods with a strong acidic taste are rich in citric acid. The following fruits and the juices made from these fruits, dried plums and fruit vinegars are rich in citric acid and are good choices. That is, citrus, lemon, lime, plum, ume, apple, hawthorn, grapefruit, pineapple, strawberry, etc. Another in some nuts, vegetables (tomatoes) also rich in citric acid. However, high intake of citric acid-containing fruits and vegetables can lead to high oxaluria and offset the benefits of increasing citric acid in the diet. Focus on dietary fiber intake: Studies have shown that dietary fiber intake is negatively correlated with the incidence of urinary stones, and that increased dietary fiber intake can lead to a reduction in urinary calcium oxalate and uric acid. Cereals, potatoes and fresh vegetables are rich in fiber, do coarse and fine with more fresh vegetables can play a beneficial role in increasing dietary fiber, such as fresh vegetables including cucumber, bean sprouts, mung bean sprouts, etc., fresh fruits including apples, sorbet, two melons, grapes, oranges, etc. Urinary tract stones need to try not to take or take less drugs related to stones, such as vitamin c, hormones, aspirin, sulfonamide, rhubarb drugs, etc. Urinary tract stones should not eat more sugar: urinary tract stones patients eat too much sugar, not only hinder treatment, and will promote the further formation of urinary stones. It has been proven that various types of sugar, especially galactose, lactose, fructose and sucrose, can be converted into endogenous oxalate – the precursor of calcium oxalate, the concentration of calcium ions in the urine, oxalic acid and the acidity of the urine will increase after taking sugar. Both calcium and oxalic acid can promote stone formation, and the simultaneous increase of the three is more likely to form stones. The increase in acidity of urine can make calcium urate and calcium oxalate precipitate easily and promote stone formation. Therefore, patients suffering from kidney, ureteral and bladder stones should not eat more sugar. Patients with uric acid stones: uric acid stones are easy to form in acidic urine, but easy to dissolve in alkaline urine. Therefore, it is important to eat as little acidic food as possible, such as animal offal, sea fish, shrimp, peanuts, lentils, black tea, coffee, etc. Eat more low purine food, such as cornmeal, cereals, eggs, fresh vegetables, fruits, etc. Patients with calcium phosphate stones should eat fewer foods high in phosphorus, such as whole milk powder, bran, shrimp, pumpkin seeds, pine nuts, etc., and more walnuts, carrots, watermelon, winter melon, pears, fresh roots, etc. Cystinuria: Cystinuria is a genetic disorder caused by the inability of the renal tubules to reabsorb certain specific amino acids, resulting in supersaturation of cystine in the urine. Since there is no cure for the genetic defect, all treatment is basically symptomatic, so more attention needs to be paid to the diet. Methionine in the diet is metabolized to cystine in the body, so patients with cystine stones should adopt a low-methionine diet, such as eating less eggs, poultry, fish and meat. Fruits and vegetables can turn urine to alkaline, which is better for preventing cystine stones, and drinking more water to reduce the concentration of cystine and achieve the therapeutic effect. For cystine stones, oral lithotripsy treatment with Youlite can be used. The drug must be closely monitored in the process of taking urine PH and the amount taken at night must be adjusted according to the acidity and alkalinity of urine. Proper exercise, weight control: obesity is one of the important causes of stone formation, proper aerobic exercise, physical exercise, weight control, not only beneficial to enhance physical fitness, and can make the small stones in the movement down, and excretion, persistence is very important. In conclusion, the diet of children with urinary tract stones should be light and low salt, low fat, low oxalic acid, low purine diet, increase the daily water intake, at the same time should strengthen the intake of vitamins, dietary fiber, control the intake of inorganic salt, appropriate exercise, according to the analysis of stone composition, a reasonable combination of drug lithotripsy treatment, may you be away from urinary stone disease.