Have you often feel very severe pain in your abdomen, groin or sides? If your answer is yes, then make a trip to your doctor because you might have kidney stones. Kidney stones or sometimes it is called renal calculi are hard mineral and crystalline materials that are formed inside the kidney or the urinary tract. Research has shown for this here one in every twenty individuals develop kidney stone(s) at some stage in their lives. Source: Free Articles from ArticlesFactory.com