The function of the kidneys is to filter waste chemical compounds from the body into the urine. Under certain conditions, the chemicals in the urine may form crystals, which combine to form urinary stones.
Urinary stones may block the flow of urine and cause severe pain, infection and affect the function of the kidney. Urinary stones are usually found either in the kidney, the ureters (tubes that direct urine from the kidneys to the bladder) or in the bladder and the urethra.
Kidney stones usually cause symptoms when they pass into one of the ureters. This causes obstruction to the flow of urine and swelling of the kidney, as well as spasms of the ureter. It is also important to note that symptoms might not be related to
The following symptoms can occur: