Kidney stones are the first common disease in urology, with an age of onset of 20-50 years, mostly in adult males, directly affecting kidney function and causing great harm. In the urology department, kidney stones are the most common disease. Drinking more water can dilute the urine and prevent high concentration of salts and minerals from accumulating into stones. The appropriate amount of water to drink is 2L of urine a day. Drink water 5 times a day, especially in the morning, before going to bed at night, 1h after breakfast and 1h after dinner, drink water at even intervals, it is best to develop the habit of drinking water regularly, do not wait until you feel thirsty to drink, drink mainly plain water. 2.Supplementation of fiber Add rice sugar bran, can prevent the occurrence of stones. 3, more activities do not like the activity of people easy to make calcium accumulation in the blood. For students who have been sitting in classrooms and computers for a long time, it is recommended that they should take part in more physical exercises, such as playing ball games and running, to reduce the occurrence of stones or to promote the discharge of kidney stones. 4, eat less salt If you have stones, you should reduce the intake of salt. The daily salt intake should be reduced to 2~3 g. 5. Do not eat food with too much protein. A laboratory analysis of kidney stones showed that 87.5% of the stones contained calcium oxalate. The source of such a large proportion of calcium oxalate is because protein, in addition to containing oxalic acid raw materials, can also promote the absorption of calcium in the intestine. If you often eat too much food with high protein, the calcium, oxalic acid and uric acid in the kidneys and urine will generally increase, and if you cannot excrete the excess calcium, oxalic acid and uric acid in time, the conditions for kidney stones and ureteral stones will be formed. The main reason for the increase in the incidence of kidney stones in economically developed countries in the world today is this. 6, should not eat food containing high oxalic acid large accumulation of oxalic acid in the body, is one of the factors leading to kidney stones, urinary stones. Spinach, beans, grapes, cocoa, tea, oranges, tomatoes, potatoes, plums, bamboo shoots, etc. are foods high in oxalic acid. Research found that 200g spinach, containing 725 mg of oxalic acid, if a person 1 time will eat all 200 g of spinach, 8 h after eating, check the urinary excretion of oxalic acid 20 ~ 25mg, equivalent to the average total amount of oxalic acid excreted by normal people 24h. 7, it is advisable to eat purine-rich food animal offal, seafood, peanuts, beans, spinach, etc., all contain more purine components. After purine enters the body, the end product of metabolism is uric acid, which can lead to the precipitation of oxalate in the urine. 8, should not eat food containing too much fat eat fatty pork and other fatty foods will reduce the intestinal tract can be combined with calcium, thus causing an increase in the absorption of oxalate, if once the excretory dysfunction, such as sweating, drinking less water, less urine, kidney stones are easy to form.