Blood visible to naked eye. Always significant — requires urgent investigation regardless of age. Pink/red/brown urine. Single episode warrants full workup.
Microscopic (Non-visible) Haematuria
≥3 RBC per high-power field (HPF) on 2 separate MSU samples. Detected on dipstick (confirm with microscopy — false positives from myoglobin, haemoglobin). Persistent microscopic haematuria requires investigation.
Painless haematuria = hallmark (pain = stone or infection)
IgA Nephropathy vs Post-Streptococcal GN
Feature
IgA Nephropathy
Post-Strep GN
Onset after URTI
1–2 days (concurrent)
10–14 days (latent period)
Complement
Normal C3
Low C3
IgA levels
Elevated in 50%
Normal
Prognosis
Chronic; may progress to CKD
Usually self-limiting in children
Imaging & 2WW Referral Criteria
USS First-Line Imaging
Renal ultrasound identifies masses, hydronephrosis, calculi. CT urogram (CTU) is gold standard for upper tract evaluation — used if USS inconclusive or malignancy high suspicion.
Flexible Cystoscopy — Indicated For:
All patients aged ≥40 with any haematuria
All visible haematuria
2WW: visible haematuria >45 years OR unexplained microscopic haematuria >60 + dysuria/raised WBC
Investigation Pathway
MSU culture (exclude infection before further workup)
Urine cytology (limited sensitivity)
Blood: FBC, U&E, eGFR, clotting, PSA (if male >50)
USS kidneys/bladder — first-line imaging
CT urogram if upper tract concern
Flexible cystoscopy — for ≥40 years or visible haematuria
Renal biopsy if glomerulonephritis suspected (proteinuria + casts)
IgA Nephropathy — Long-Term Complications
Up to 30–40% develop CKD over 20 years. Hypertension and proteinuria are poor prognostic features. ACE inhibitors/ARBs reduce proteinuria and slow progression. Some patients benefit from immunosuppression (corticosteroids). Oxford MEST-C scoring system for histological prognosis.
GCC-Specific Considerations
Schistosomiasis in Expatriates
Schistosoma haematobium is endemic in Egypt, Sudan, and parts of sub-Saharan Africa. Many expatriate workers in GCC from these regions may carry schistosomiasis. Classic presentation: terminal haematuria (blood at end of urination stream). Long-term risk: squamous cell bladder carcinoma. Screen at-risk populations. Treat with praziquantel.
High Smoking Rates in GCC Males
Cigarette smoking prevalence among adult males in GCC ranges from 20–45% depending on country. This significantly increases bladder cancer risk. Shisha smoking is also widespread and carries similar risk. Nurses should take a thorough smoking history in all haematuria patients.
Petrochemical Occupational Exposure
GCC economies are heavily based on oil and petrochemical industries. Workers in refineries, chemical plants, and associated industries have significant exposure to aromatic amines and other bladder carcinogens. Occupational history is critical in haematuria assessment.
Advanced urology services including TURBT, radical cystectomy, robotic surgery, and neoadjuvant chemotherapy are available across major GCC centres. 2WW-equivalent urgent referral pathways exist in most GCC health systems. Nurses play a key role in identifying red flag haematuria for prompt referral.
GCC has very high rates of nephrolithiasis due to hot climate, dehydration, high dietary protein, and genetic factors. Renal stones cause haematuria (often with colicky flank pain). Ensure adequate hydration advice. Uric acid stones more common in GCC — check urate levels.
Key Exam Points
Microscopic haematuria = ≥3 RBC/HPF on 2 separate samples
Bladder cancer = most common cause haematuria in adults >40; TCC 90%
Smoking = strongest risk factor for TCC
IgA nephropathy: haematuria concurrent with URTI (1–2 days)
Post-strep GN: latent period 10–14 days after URTI
USS = first-line imaging; flexible cystoscopy for ≥40 years