Management of Hematuria
All patients with hematuria require risk stratification and appropriate evaluation, with gross hematuria warranting immediate urologic referral due to the high risk of underlying malignancy (>10%). 1, 2
Initial Assessment and Risk Stratification
The American Urological Association (AUA) and Society of Urodynamics, Female Pelvic Medicine & Urogenital Reconstruction (SUFU) guidelines categorize patients with hematuria into risk groups:
- High risk: Age >60 years, male gender, smoking history, exposure to industrial chemicals, family history of renal cancer, history of pelvic radiation 1
- Intermediate risk: Risk factors between high and low
- Low risk: Minimal risk factors, younger patients
Diagnostic Approach
For Gross Hematuria:
- Immediate urologic referral is mandatory, even if self-limited 3, 1
- Imaging: CT urography is preferred; renal and bladder ultrasound can be used as initial screening if CT is not immediately available 1
- Cystoscopy: Required for all patients with gross hematuria 1
For Microscopic Hematuria:
- Confirm with microscopy: ≥3 RBCs per high-powered field 3
- Rule out benign causes: UTI, menstruation, vigorous exercise, trauma
- If no benign cause is identified: Consider urology referral for cystoscopy and imaging 3
Imaging Recommendations
| Clinical Scenario | Recommended Imaging | Sensitivity | Specificity |
|---|---|---|---|
| Most cases | CT urography | 92% | 93% |
| Renal insufficiency or contrast allergy | MR urography or ultrasound | High | High |
| Young patients (<40 years) | Renal ultrasound | 50% | 95% |
Follow-up and Surveillance
- After negative evaluation: The 2025 AUA/SUFU guidelines recommend shared decision-making regarding whether to repeat urinalysis in the future 3
- For persistent hematuria with negative evaluation: Consider repeat evaluation based on risk factors and clinical changes 3
- Important note: Even after a negative evaluation, changes in clinical status (new gross hematuria, worsening symptoms) warrant further evaluation 3
Key Pitfalls to Avoid
- Do not ignore gross hematuria: Even a single episode requires complete evaluation 1, 2
- Do not attribute hematuria solely to anticoagulation therapy: Pursue evaluation even in patients on antiplatelet or anticoagulant therapy 3
- Do not use urinary cytology or urine-based molecular markers in the initial evaluation of hematuria 3
- Do not perform screening urinalysis for cancer detection in asymptomatic adults 3
- Do not discharge patients without follow-up plan: The 2025 AUA/SUFU guidelines emphasize shared decision-making regarding future monitoring 3
Special Considerations
- Delays in evaluation of gross hematuria can increase cancer-specific mortality by 34% 1
- Young patients (<40 years) with microscopic hematuria have lower risk of malignancy but should still receive appropriate evaluation 4
- Persistent unexplained hematuria despite negative initial evaluation may require repeat testing at intervals 3, 1
The 2025 AUA/SUFU guidelines note that most patients with a negative hematuria evaluation do not require ongoing urologic monitoring and may be safely discharged after shared decision-making, though select high-risk patients may benefit from follow-up 3.