Do Men with UTI Have Blood in Their Urine?
Yes, men with urinary tract infections can have blood in their urine (hematuria), and this is recognized as a potential sign of catheter-associated UTI, but hematuria alone is not a reliable indicator of UTI and should not drive empiric antibiotic decisions.
Clinical Context and Evidence
According to the 2024 European Association of Urology guidelines, acute hematuria is specifically listed as a sign compatible with catheter-associated UTI 1. This represents the most direct guideline-level evidence linking hematuria to UTI in the male population.
However, the relationship between hematuria and UTI in men is more nuanced than a simple yes/no answer:
Key Clinical Findings:
Hematuria can occur with UTI but is not diagnostic: The most recent research demonstrates that gross hematuria is actually associated with LOWER odds of confirmed UTI (OR: 0.49, P = 0.007), particularly in older children and young males 2. While this pediatric data may not fully translate to adult males, it highlights an important principle: hematuria alone should not be assumed to indicate UTI.
Resolution timeline matters: When hematuria is present with UTI, it resolves slowly after treatment. Only 38% of patients show resolution at 30 days, 50% at 60 days (median), and 75% at 180 days 3. Repeat urinalysis should be performed around 12 weeks post-treatment to allow natural resolution and avoid false-positive rechecks 3.
Important Clinical Distinctions:
All UTIs in males are considered complicated 1. The 2024 EAU guidelines explicitly list "urinary tract infection in males" as a factor associated with complicated UTI 1. This classification is critical because:
- Men require longer treatment duration (7-14 days, with 14 days recommended when prostatitis cannot be excluded) 1
- The microbial spectrum is broader with higher antimicrobial resistance 1
- Underlying anatomical or functional abnormalities are more common 4
Differential Diagnosis Priority:
When hematuria is present in men, the most common causes include 5, 6:
- Urinary tract infection
- Benign prostatic hyperplasia (BPH) - the leading etiology in men over 50 4
- Urinary calculi
- Up to 5% have urinary tract malignancy 5
Clinical Pitfalls to Avoid:
Do not use hematuria alone to diagnose UTI or initiate empiric antibiotics - this violates antibiotic stewardship principles 2
Persistent hematuria after UTI treatment warrants full urologic workup 5. Microscopic hematuria in the setting of UTI should resolve after appropriate antibiotic treatment; persistence requires diagnostic evaluation 5.
Do not check PSA immediately after male UTI - prostatitis can raise PSA independently of malignancy, and levels may remain elevated up to 3 months post-infection 4
Recommended Approach:
For men presenting with suspected UTI and hematuria:
- Obtain urine culture before starting antibiotics
- Treat with appropriate antibiotics for complicated UTI (7-14 days) 1
- Recheck urinalysis at 12 weeks to confirm hematuria resolution 3
- If hematuria persists beyond 12 weeks, initiate full urologic evaluation including cystoscopy and upper tract imaging 5, 7
- First-line assessment should include targeted history (emphasizing macroscopic hematuria and lower urinary tract symptoms), digital rectal examination, IPSS score, and ultrasound with post-void residual 4
The presence of dysmorphic red blood cells, cellular casts, proteinuria, elevated creatinine, or hypertension alongside hematuria should prompt concurrent nephrologic and urologic referral 5.