Human Kidney Stones Medical Background Stock Image

Kidney stones, also known as renal calculi, are hard deposits that form in the kidneys. They can vary in size and shape, ranging from as small as a grain of sand to as large as a golf ball. Kidney stones are composed of various substances, including calcium, oxalate, uric acid, and cysteine. The formation of kidney stones can be influenced by factors such as dehydration, certain dietary habits, family history, and certain medical conditions.