These stones can obstruct the urinary tract, leading to severe pain, hematuria (blood in urine), and potential kidney damage if left untreated. Cause of uric acid crystals The formation of these ...

Medically reviewed by Scott Zashin, MD Uric acid is a waste product found in urine. If your body makes too much or doesn't ...

A uric acid test measures the amount of a waste product called uric acid (urate) in your blood or urine. Uric acid is a byproduct of the breakdown of chemicals called purines found in foods and ...

Normally, uric acid passes through your kidneys and leaves your body and urine. But in some people ... this extra acid can form into tiny sharp crystals, which collect around your joints.