All About Stones

Patient Information

Everything you need to know about urinary tract calculi

Kidney Stones

Kidney stones (renal lithiasis) are small, hard deposits that form inside your kidneys. Kidney stones are made of mineral and acid salts. Kidney stones have many causes. In one common scenario, kidney stones form when the urine becomes concentrated, allowing minerals to crystallize and stick together.

Bladder Stones

Bladder stones are usually small masses of minerals that form in your bladder. Bladder stones develop when urine in your bladder becomes concentrated, causing minerals in your urine to crystallize. Concentrated, stagnant urine is often the result of not being able to completely empty your bladder. This may be due to an enlarged prostate, nerve damage or recurring urinary tract infections.