How Common are Kidney Stones?More than a million Indians experience an attack of kidney stones each year. Those experiencing such an attack for the first time often describe the pain as being the worst they have ever felt. The pain from a kidney stone is called renal colic by health care providers. Who Gets Kidney Stones? Kidney stones are more common in the following persons:

Men more often than Women

Persons 20 to 40 years of age

People with a family history of kidney stones

Those having frequent attacks of kidney stones

Normal Kidney Function Our kidneys make urine by filtering blood through specialized structures called glomeruli, removing waste products produced by the body\'s cells. The normal components of urine include water, urea, and small amounts of minerals including sodium chloride, potassium chloride, phosphates, calcium, organic salts and bile pigments.