Oxalate stones: most of them are produced by food, and some can also be produced by endogenous mechanisms. Vegetables with high oxalic acid content, such as spinach, amaranth, water spinach, green garlic, onion, water bamboo shoots, etc., should be fasted in diet. Oral folic acid 5 mg and pyridoxine 10 mg can prevent glycine from converting into oxalic acid. Patients with this kind of stones should drink more water.

Phosphate stones: Because they are formed in alkaline urine, we should eat more acidic foods and limit foods with high calcium content. Acidic foods such as livestock and poultry meat, fish and shrimp, eggs, cereals and peanuts.

Uric acid calculus: It is caused by hyperuricemia, so foods with high purine content, such as animal viscera, thick soup, mushrooms, peas, Gracilaria lemaneiformis, sardines, anchovies and roe, should be fasted. Eat more fruits and vegetables and drink more water to reduce uric acid concentration.

Calcium calculus: milk, cheese and shrimp skin with high calcium content should be restricted. Eat more acidic foods, such as meat, poultry, eggs, etc., to make the urine acidic and drink more water.

Cystine calculus: Pay attention to limit methionine and acidic food (animal food) to eat alkaline food (plant food) to make urine alkaline, and drink plenty of water.

For stones, eat more and exercise more. If you drink Shi Yu tea for a long time, you can regulate and dissolve the acid in your body and dredge the urethra.