Colonoscopy — Patient Information

Colonoscopy allows visualisation of the colon and rectum and is used for evaluating symptoms (such as bleeding or change in bowel habits) and for screening. The need and timing are determined individually based on history and risk factors.

Common indications

Rectal bleeding or blood in stool of unclear cause
Persistent change in bowel habits or unexplained iron-deficiency anaemia
Screening based on age and family history
Follow-up of previously detected polyps

Preparation

Adequate bowel preparation is required for a complete examination. Detailed dietary and laxative instructions are provided ahead of the procedure.

This page is for general information only

The content here is not a diagnosis or treatment recommendation and does not replace an individual medical evaluation. If your symptoms persist, consult a physician. In emergencies call 112 or the nearest emergency department.

Symptoms Treatments FAQ

Frequently asked questions

Is colonoscopy painful?

The procedure is generally well tolerated with sedation. Specific arrangements are explained before the appointment.

How often should colonoscopy be repeated?

Intervals depend on findings, personal and family history. Average-risk adults often follow 5–10 year intervals; shorter intervals apply after polyp removal or with risk factors.