Also known as renal calculi, kidney stones are the result of crystallization of certain substances found in urine, including calcium, phosphate, oxalic acid, and uric acid Stones may form in the urine collecting area (pelvis) of the kidney, as well as the ureters (narrow tubes connecting the kidney to the urinary bladder)
Walt's Kidney Stones Q&A Archive The presence of calculi in the kidney or collecting system
A small hard mass in the kidney that forms from deposits chiefly of phosphates and urates. or renal calculus Mass of minerals and organic matter that may form in a kidney. Urine contains many salts in solution, and low fluid volume or high mineral concentration can cause these salts to precipitate and grow, forming stones. Large stones can block urine flow, be a focus for infection, or cause renal colic (painful spasms). They can obstruct the urinary system at various points. Treatment deals with any underlying problem (e.g., infection or obstruction), tries to dissolve stones with drugs or ultrasound (lithotripsy), or removes large ones surgically
A kidney stone is a hard pebble-like mass commonly composed of calcium oxalate that forms within the kidney Some kidney stones cause pain and must be removed from the body using surgery or ultrasound techniques