Hematuria

Hematuria requires a systematic diagnostic approach to distinguish between benign pigmenturia and serious underlying pathology. While red-colored urine often triggers alarm, clinicians must first rule out non-blood sources like dietary pigments or medications. Diagnostic evaluation centers on differentiating glomerular bleeding—characterized by dysmorphic red cells or casts—from non-glomerular causes, which frequently involve infection, stones, or malignancy. Even in patients on anticoagulation, hematuria warrants a comprehensive investigation, including a CT urogram and cystoscopy, as spontaneous resolution does not eliminate the risk of malignancy. A notable clinical pearl involves the necessity of urine cultures, as urinary tract infections frequently present with blood. Ultimately, the diagnostic process must remain rigorous, as common conditions like kidney stones can present with atypical symptoms, such as the diffuse abdominal pain observed in the presented case of a ureteral stone.