Severe pain in the side and back, often coming in waves (may move toward the lower abdomen or groin)
Pain that may be accompanied by nausea and vomiting
Burning or pain when urinating
Needing to urinate more often or urgently
Urine that is cloudy or has a strong odor
Blood in the urine (pink, red, or brown urine)
Fever and chills (possible infection with a stone)
Trouble urinating or very little urine output
Symptoms that start suddenly and intensify over time
Passing a stone in the urine (may look like a small, hard pebble)