What is bladder cancer?

Bladder cancer is one of the commonest cancers in the UK — most often presents with blood in urine (visible or microscopic) with no pain. Smoking is the biggest risk factor. Diagnosis needs cystoscopy and biopsy — urine tests alone are not enough. Non-muscle-invasive bladder cancer is treated with removal via cystoscope (TURBT) plus BCG immunotherapy into bladder. Muscle-invasive disease may need bladder removal (cystectomy) or chemoradiotherapy. See a GP within 2 weeks for blood in urine — even once — especially if you smoke or are over 45.

What are the symptoms of bladder cancer?

Painless blood in urine — pink, red, or cola-coloured — most common sign. May be intermittent — one episode still needs investigation. Frequency, urgency, dysuria less common — overlap with UTI. Advanced — pelvic pain, weight loss, bone pain, leg swelling if obstructed.

How is bladder cancer diagnosed?

Cystoscopy — camera into bladder — gold standard. TURBT — transurethral resection — removes tumour and provides histology. CT urogram or ultrasound for upper tract. Urine cytology supplementary — not standalone screening. Staging — non-muscle-invasive (NMIBC) vs muscle-invasive (MIBC) determines treatment.

How is non-muscle-invasive bladder cancer treated?

TURBT complete resection. Intravesical BCG immunotherapy — weekly then maintenance — reduces recurrence and progression for high-risk NMIBC. Intravesical chemotherapy (mitomycin C) for intermediate risk. Surveillance cystoscopy schedule — intensive first 2 years.

How is muscle-invasive bladder cancer treated?

Radical cystectomy — bladder removal with urinary diversion (ileal conduit or neobladder) — or trimodal chemoradiotherapy preserving bladder in selected patients. Neoadjuvant cisplatin chemotherapy before surgery improves survival. Metastatic — immunotherapy (pembrolizumab), enfortumab vedotin.

Can bladder cancer be prevented?

Stop smoking — most important. Hydrate well. Workplace exposure reduction. No proven screening for general population. Recurrence common in bladder — lifelong cystoscopy follow-up after treatment.

Bladder cancer: Symptoms, Causes & Treatment

Bladder cancer — never ignore blood in urine

Bladder cancer (urothelial carcinoma) — ~10,300 UK cases/year — painless haematuria is cardinal sign.

Men 3–4× commoner — smoking dominant risk

Risk factors

Smoking — 50% attributable
Occupational chemicals — rubber, dye, leather
Chronic schistosomiasis — rare UK
Previous pelvic radiotherapy
Lynch syndrome

See urinary tract infection — UTI can cause blood — but must exclude cancer if haematuria without clear infection or recurrent

Investigation pathway

2-week wait haematuria clinic:

Cystoscopy — office flexible often first
Imaging — CT urogram
TURBT if lesion seen

Do not treat repeated antibiotics without cystoscopy if haematuria persists

Staging and grading

NMIBC (Ta, T1, CIS):

Confined to mucosa/lamina propria
High grade CIS — flat aggressive — BCG essential

MIBC (T2+):

Muscle invasion — systemic risk

Treatment summary

Stage	Treatment
Low-risk NMIBC	TURBT + surveillance
High-risk NMIBC	TURBT + BCG induction/maintenance
MIBC	Radical cystectomy ± neoadjuvant chemo OR chemoradiotherapy
Metastatic	Immunotherapy, ADCs, chemotherapy

Urinary diversion after cystectomy

Ileal conduit — urostomy bag

Neobladder — internal pouch — selected patients

Quality of life — specialist stoma nurses, peer support

Surveillance

Bladder cancer recurs in bladder — and upper tract

Cystoscopy schedules — up to 10 years

One episode red urine — GP referral — 90% not cancer — but 10% need you to show up.

Common questions about bladder cancer

What are the symptoms of bladder cancer?: Painless blood in urine — pink, red, or cola-coloured — most common sign. May be intermittent — one episode still needs investigation. Frequency, urgency, dysuria less common — overlap with UTI. Advanced — pelvic pain, weight loss, bone pain, leg swelling if obstructed.
How is bladder cancer diagnosed?: Cystoscopy — camera into bladder — gold standard. TURBT — transurethral resection — removes tumour and provides histology. CT urogram or ultrasound for upper tract. Urine cytology supplementary — not standalone screening. Staging — non-muscle-invasive (NMIBC) vs muscle-invasive (MIBC) determines treatment.
How is non-muscle-invasive bladder cancer treated?: TURBT complete resection. Intravesical BCG immunotherapy — weekly then maintenance — reduces recurrence and progression for high-risk NMIBC. Intravesical chemotherapy (mitomycin C) for intermediate risk. Surveillance cystoscopy schedule — intensive first 2 years.
How is muscle-invasive bladder cancer treated?: Radical cystectomy — bladder removal with urinary diversion (ileal conduit or neobladder) — or trimodal chemoradiotherapy preserving bladder in selected patients. Neoadjuvant cisplatin chemotherapy before surgery improves survival. Metastatic — immunotherapy (pembrolizumab), enfortumab vedotin.
Can bladder cancer be prevented?: Stop smoking — most important. Hydrate well. Workplace exposure reduction. No proven screening for general population. Recurrence common in bladder — lifelong cystoscopy follow-up after treatment.

Sources

How we reviewed this page

Medically reviewed by the HealthAnswers UK doctor review panel

First published: 14 June 2026
Medically reviewed: 3 July 2026
Next review due: 3 July 2029 or sooner if NHS or NICE guidance changes

Written by HealthAnswers editorial team. Published by HealthAnswers (Elite Digital AI Solutions Ltd). How we review content · Report a problem with this page