What Are Kidney Stones? Kidney stones are hard crystalline structures formed within the kidney or urinary tract due to supersaturation of certain minerals in urine. Common types of kidney stones include calcium oxalate, calcium phosphate, uric acid, and struvite stones. What is a Kidney Stone? A kidney stone, also known as a renal calculus (plural ~ calculi), are crystal aggregates that form within the kidney. A stone or stone(s) will pass down the ureter and enter the bladder. Due to its passage through the urinary system, kidney stones may also be called urinary stones or the term nephrolithiasis is used to refer to the presence of kidney stones. The term ureterolithiasis refers to stones in the ureter(s) – usually stones form in the kidneys but grow ... Kidney stones vary in size and treatment options, which are crucial for effective management. Here’s a detailed overview of kidney stone sizes in millimeters (mm) and the corresponding treatment approaches. Kidney stones less than 4 mm size, conservative measures such as increased hydration and pain management are usually effective. Kidney stones are a common cause of blood in the urine (hematuria) and often severe pain in the abdomen, flank, or groin. Kidney stones are sometimes called renal calculi. The condition of having kidney stones is termed nephrolithiasis.
