Cancer surgery and treatment
Bladder instillations: BCG or chemotherapy
Updated: 3 October 2026
My pathway: before, during, after
01Indications
Reduce recurrence or progression of selected non-muscle-invasive tumours according to risk.
02Preparation
Check healing, absence of symptomatic infection and product-specific contraindications.
03What happens
Medicine is placed in the bladder through a catheter on a defined schedule.
04Follow-up
Follow the centre’s hygiene instructions and continue cystoscopic surveillance.
05Expected results
Reduces tumour risk when indicated, without eliminating it.
06Risks and limitations
Irritation and fever may occur; persistent fever or illness after BCG needs urgent medical contact.
Questions for your consultation
- Why this procedure rather than another option?
- What benefit should I expect in my case?
- When can I resume activities and whom should I contact if problems occur?
Medical references
These guides describe treatment options without implying that every technique is offered at the practice. Indications, anaesthesia and recovery are individualised.
Explore this topic further
Continue with related explanations of how the body works and treatment options.