4 Types of Kidney Stones (Explained With Pictures) Kidney stones, or renal calculi, are solid masses made of minerals salts Kidney stones normally form in your kidneys However, they can develop wherever in your urinary tract Stones develop when the urine becomes concentrated, enabling crystals to crystallize and attach together
Kidney Stone Gallery: Images Stone Types View images of different kidney stone types including calcium oxalate, uric acid, struvite, and cystine stones from experts
Kidney Stones: Causes, Symptoms, Diagnosis Treatment What are kidney stones? Kidney stones are solid masses or crystals that form from substances (like minerals, acids and salts) in your kidneys They can be as small as a grain of sand or — rarely — larger than a golf ball Kidney stones are also called renal calculi or nephrolithiasis