Which sign combination best suggests a renal origin for flank or groin pain?

Which sign combination best suggests a renal origin for flank or groin pain?

• A. Pain in right shoulder
• B. Flank pain with hematuria and fever
• C. Chronic headaches
• D. Cough with sputum.

Answer: (B)

Renal origin is most likely when flank or groin pain comes with urinary abnormalities and signs of infection. Hematuria signals that the urinary tract or kidneys are involved, and fever points to inflammation or infection of renal tissue, such as pyelonephritis or an infected kidney stone. This combination—pain in the flank or groin plus blood in the urine and fever—fits a kidney-related process far more than other systems, which would not typically present with both urinary changes and fever. By contrast, pain in the shoulder suggests referred pain or a musculoskeletal/pulmonary issue, chronic headaches point to a non-urinary origin, and cough with sputum implies a respiratory problem. So the triad of flank pain with hematuria and fever best signals a renal source.