A kidney stone is a hard, crystal-like mineral material that forms within the kidney or urinary tract. An individual dealing with kidney stones might see blood in their urine and suffer severe pain in the abdomen, back and groin. In some cases, the pain will be accompanied by nausea and vomiting. Some people have described the pain affiliated with kidney stones as the worst pain of their lives.
Kidney stones form when an individual’s urine volume decreases, and/or there is an excessive amount of stone-forming substances in the urine. In most cases, the stone that forms is 80 percent Calcium—either oxolate or phosphate. The most common causes of kidney stones are dehydration and obstructed urine flow.
Kidney stones must be passed through the urinary tract. Often, the stone will pass within 48 hours with proper hydration. If the stone is very large or does not pass it could require further evaluation and intervention.