What causes pain in back, abdominal, groin, pain in testicles and blood in urine. no fever or general ill feeling.

?stones: This may be kidney stones but must be evalauted any time have bloody urine also could be infection.

Could be a number of: Causes. Sounds most likely its a renal or ureteric colic from a stone, which can cause all the symptoms you describe. Or it could be a blood clot coming down from the kidney. You should see your doctor or a urologist urgently to have it properly investigated.