What is the cause of formation of kidney stones?

Kidney stones to form the main reason is the food, it is made of the diet can be stone formation of related components, caused by excessive intake of specific have: oxalate accumulation overmuch, purine metabolic disorders, too much fat intake, excessive higher sugar, protein, etc., the high calcium salt content of the water quality was also one of the factors.
A, sugar is too high.Sugar is one of the important nutrients, the body often should right amount supplement, but all of a sudden increase too much, especially the lactose, more can promote the absorption of calcium, it is more likely to lead to accumulation of calcium oxalate in the body and the formation of urinary calculi.
Second, the excess protein.Often excessive consumption of high-protein food, then make the kidneys and urinary calcium, oxalate, uric acid increased the composition of the common.If the extra eduction body outside, not through the kidneys in time to the condition of kidney stones are formed.
Third, oxalic acid accumulated too much.Oxalate in the body of a large number of accumulation, is one of the factors of urinary calculi.Such as spinach, beans, grapes and cocoa, tea, orange, potato, etc. These people generally love to eat, it is food containing oxalic acid is higher.
Fourth, purine metabolic disorders.Animal offal, seafood, peanuts, beans, spinach, etc., all contain more purine ingredients.After purines into the body, must carry on the metabolism, its end product is uric acid metabolism.Uric acid can induce urine oxalic acid salt precipitation and the formation of urinary calculi.
Five, the fat intake too much.All kinds of animal meat, especially pork fat, fat is more food.Eat the fat will be increased, fat be reduced intestinal tract can be combined with calcium, if once appear excretion function failure, such as sweating more, drink less, kidney stone is probably formed in this case.