Signs and symptoms of calcium oxalate crystals depend on their size, shape, and location on the urinary tract. Most calcium oxalate stone s form in the renal pelvis, where they usually cause no pain or obstruction of the urine flow. Eventually, stones might move from the kidney into the ureter, which is a narrow tube that connects the kidneys to the bladder. The passage of the ureteral stone causes increased pressure within the ureter, followed by spasms of the smooth muscle lining and ... Calcium kidney stones are the most common type kidney stone. Calcium kidney stones can be calcium oxalate or calcium phosphate (aka brushite or apatite). Learn about risk factors, prevention tips, and dietary guidelines. Having crystals in your urine doesn’t necessarily mean you have a disease. They can, however, be related to issues like kidney stones. Learn why calcium oxalate crystals form in urine , how to identify them, and key prevention tips to avoid kidney stones.
