Warning Symptoms (When Present)
- Blood in urine (haematuria) — most common symptom when present
- Persistent flank/back pain
- Palpable mass in the flank/abdomen (advanced disease)
- Unexplained weight loss
- Fatigue
- Rarely: symptoms from spread — bone pain, persistent cough
Increasingly Incidental Diagnosis
With widespread use of CT and ultrasound scans for other reasons (abdominal pain, kidney stones, other conditions), kidney cancers are increasingly found incidentally at an early, more curable stage before symptoms develop — this has improved overall outcomes.Treatment by Stage
| Stage | Treatment |
|---|---|
| Localised, small (<4cm) | Partial nephrectomy (kidney-sparing surgery) or active surveillance in select cases |
| Localised, larger | Radical nephrectomy (whole kidney removal) |
| Locally advanced | Surgery plus consideration of additional treatment |
| Metastatic | Targeted therapy (tyrosine kinase inhibitors), immunotherapy (checkpoint inhibitors) |
Blood in Urine Always Needs InvestigationAny visible blood in urine, even a single episode without pain, requires investigation (ultrasound/CT and cystoscopy) to exclude kidney or bladder cancer — don't dismiss it as 'probably nothing', especially if you're over 45 or smoke.
Smoking Doubles Kidney Cancer RiskSmoking is one of the most significant modifiable risk factors for kidney cancer, roughly doubling risk — smoking cessation reduces this risk over time.
Can you live normally with one kidney?
Yes — one healthy kidney can maintain normal kidney function for most people, which is why partial or radical nephrectomy (removing one kidney) is often curative without significantly affecting quality of life.
Is a kidney cyst the same as kidney cancer?
No — most kidney cysts are simple, benign, and require no treatment. However, complex cysts (with certain features on imaging) need further evaluation as a small proportion can be cancerous.
Medical Disclaimer: This page is for general education only and does not replace professional medical advice. Always consult a qualified healthcare provider.