There are many factors that lead to kidney stones, the incidence of kidney stones has increased frequently, patients less than timely and regular treatment, otherwise, the best time for treatment will be delayed, thus bringing greater pain to the patients with kidney stones. It is easy to cause tragedy, so early prevention and timely diagnosis is very critical. The following is an introduction to the factors of the development of kidney stones: 1. Excessive accumulation of oxalic acid: the large accumulation of oxalic acid in the body is one of the factors that lead to kidney and urine stones. Such as spinach, beans, grapes, cocoa, tea, oranges, tomatoes, potatoes, plums, bamboo shoots and other things that people generally love to eat, is precisely the food containing high oxalic acid. Doctors found through research: 200 grams of spinach, containing 725.6 mg of oxalic acid, if a person will eat all 200 grams of spinach at once, 8 hours after eating, check the urinary excretion of oxalic acid for 20 to 25 mg, equivalent to the average total amount of oxalic acid excreted by normal people in 24 hours. 2, purine metabolism malfunction: animal offal, seafood, peanuts, beans, spinach, etc., all contain more purine components. After purine enters the body, it is metabolized, and the end product of its metabolism is uric acid. Uric acid can contribute to the precipitation of oxalate in the urine. If too much purine-rich food is consumed at one time, and the metabolism of purine is out of order, oxalate will be deposited in the urine and form urinary stones. 3, too much fat intake: all kinds of animal meat, especially fatty pork, are fatty foods. Eat more fat in the body is bound to increase, fat will reduce the intestinal can be combined with calcium, thus causing an increase in the absorption of oxalate, if once the excretory function failure, such as sweating, drinking less water, less urine, kidney stones are likely to form in this case. 4, sugar intake increased: sugar is an important nutrient for the human body, to be added regularly in moderation, but too much at once, especially lactose, will also make the formation of stones to create the conditions. Experts found that: whether normal people or stone patients, after consuming 100 grams of sucrose, after 2 hours to check their urine, found that the urinary concentration of calcium and oxalic acid are rising, if lactose is taken, it can promote the absorption of calcium, more likely to lead to the accumulation of calcium oxalate in the body and the formation of urinary stones. 5, excessive protein: laboratory analysis of the composition of kidney stones, found that the stones accounted for 87.5% of calcium oxalate. The source of such a large proportion of calcium oxalate is because protein contains glycine and hydroxyproline, the raw materials of oxalic acid, in addition to protein can also promote the intestinal function of calcium absorption. If high protein foods are often consumed in excess, the calcium, oxalic acid and uric acid content in the kidneys and urine will generally increase. People must understand the early manifestations of kidney stones in their lives to bring more pain to the patients with kidney stones. When kidney stones appear, the first time to give effective treatment to relieve the condition of kidney stones disease, to avoid kidney stones for patients to bring great harm.