Kidney stones are a common cause of extreme pain in the abdomen. While most kidney stones are small enough to pass through the urinary tract undetected, larger stones can get stuck and cause significant abdominal pain, or renal colic. Some larger stones eventually pass through urination, but others may need special treatment to be broken up or to be removed through surgery.
If you notice blood in your urine, are experiencing pain with nausea, vomiting, or difficulty urinating, seek medical attention from your primary care provider or urologist. If you are also experiencing fever and chills, you should seek immediate evaluation at your local emergency department.