Cystoscopy Topic Guide
Blood in the Urine Blood in the urine (hematuria) can be associated with many conditions, some of which can be dangerous. Causes of blood in the urine include kidney stones, kidney disease, blood diseases, and some cancers. Tests used to evaluate blood in the urine include urinalysis, cystoscopy, blood tests, and imaging tests. The prognosis for blood in the urine depends on the cause.