Urolithiasis is one of the common diseases of the urinary system. Urinary stones can be divided into upper urinary tract stones (kidney ureteral stones) and lower urinary tract stones (bladder and urethral stones), and are a very painful disease. It used to be highly prevalent in the south, but the incidence is now increasing year by year in the north. The causes of urolithiasis are complex and are closely related to diet, metabolism, genetics, geography, and other diseases of the urinary system. Although we can not use all ways and means to prevent stones, we can control the occurrence of urolithiasis through dietary regulation. 1, eat more food containing dietary fiber: increase the intake of dietary fiber can reduce the calcium oxalate and uric acid in the urine. Cereals in coarse grains, potatoes and fresh vegetables are rich in fiber, so that coarse and fine with more fresh vegetables can play a beneficial role in increasing the dietary fiber. The more refined the food the higher the incidence of urolithiasis. 2, careful eating spinach and strong tea: in food, the highest oxalate is spinach, strong tea in oxalate is also high. 90% of stones contain calcium, and calcium oxalate stones, accounting for about 87.5%. If the amount of oxalate in food intake is too much, and the calcium oxalate in the urine is in a supersaturated state, the excess calcium oxalate crystals may precipitate out of the urine and form stones. 3, meat, animal offal to eat less: meat metabolism produces uric acid. Animal offal is high purine food, after decomposition and metabolism, it also produces high blood uric acid, which is a component of stone formation. Eat less salt (sodium chloride) and calcium, has a “synergistic effect” in the body, and can interfere with the metabolic process of drugs for the prevention and treatment of kidney stones. 4, should not eat more sweets: sweets in the main component is sugar, after taking too much sugar, urinary calcium ion concentration, oxalic acid and urinary acidity will increase. Increased urine acidity can make calcium urate, calcium oxalate easy to precipitate, prompting the formation of stones. 5, do not drink milk before going to bed: the most dangerous factor for stone formation is the concentration of calcium in the urine, which suddenly increases in a short period of time. 2~3 hours after drinking milk, it is the peak of calcium elimination through the kidneys, so when you are in a sleep state, urine concentration, calcium through the kidneys more, so easy to form stones. 6, eat more vitamin-rich food: eat more vegetables and fruits vegetables and fruits, such as alfalfa, spinach, cabbage and oranges, which contain a large amount of vitamin B6, vitamin K. Vitamin B6 can reduce the formation of calcium oxalate crystals in the urine, vitamin K can reduce the oxalic acid content in the urine, so the diet should increase the intake of these two vitamins. Appropriate to eat some help reduce the incidence of urolithiasis. 7, drink less beer: it is widely rumored that drinking beer and eating pork knuckles can prevent and treat urolithiasis, which is ridiculous. On the contrary, the wort of brewing beer contains calcium, oxalic acid, uronic acid and purine nucleotides and other acidic substances, which can increase the uric acid in the body and become a cause of kidney stones.