N20: Calculus of kidney and ureter
Calculus of kidney and ureter refers to conditions where solid formations or stones are formed in the kidney or the tube connecting the kidney and bladder, known as the ureter. These stones mostly arise due to the accumulation and crystallization of substances such as calcium or uric acid, which are usually dissolved in the urine. Common symptoms include severe pain in the lower abdomen or back, blood in the urine, or frequent urination. Some individuals may not show any symptoms until the stone moves or grows in size. The disease progression varies widely and, in severe cases, may block the flow of urine, resulting in infection or even kidney damage. Both the urinary and renal systems are directly affected by these conditions. The formation of such stones can be stimulated by factors including a family or personal history of stones, certain diets, dehydration, certain digestive diseases and some metabolic disorders.
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