Kidney stones sometimes come to light during scans for other conditions and remain without any symptoms.
Stones in the kidney can give intermittent pain and you may notice blood in the urine as well. This can follow physical exertion, jogging etc. If the stone migrates into the ureter (the tube that drains urine from the kidney into the bladder) it can cause excruciating pain radiating from loin to the groin and sometimes into the testicle in men. It is considered one of the severe pains people can experience.