Blood in the Urine: Causes and When to Act
What blood in the urine can mean and when it needs medical attention.
Last updated: 2026-09-24
Blood in the urine may be visible or found only on testing. Both should be evaluated.
Common causes
- Urinary tract infection
- Kidney or bladder stones
- Glomerular disease
- Enlarged prostate in men
Frequently asked questions
Is blood in urine always serious?
Not always, but it must always be investigated.