How effective is colonoscopy for familial adenomatous polyposis?

FAP causes numerous adenomatous polyps to develop in the large bowel. Colonoscopy allows a specialist to inspect the bowel lining, document the pattern of growth, remove suitable polyps, and obtain tissue for testing. Repeated examinations are used because new polyps can appear after an earlier examination.

The usefulness of an examination depends on preparation, visibility, polyp size and number, and whether the entire planned bowel was assessed. If the polyp burden becomes difficult to control endoscopically, the team may discuss surgery or another management approach. Care may also include assessment of other areas linked with FAP.

Keep appointments with the inherited-cancer or colorectal team and follow their preparation plan carefully. Bring a complete medication list, especially blood thinners. Ask how the findings change surveillance, whether a polyp was removed fully, and whether relatives should receive genetic counselling or assessment.

After colonoscopy, seek prompt medical advice for increasing abdominal pain, fever, persistent vomiting, marked swelling, heavy bleeding, or dizziness. Urgent help is needed for severe pain, fainting, or trouble keeping fluids down. Between examinations, report ongoing rectal bleeding, a persistent change in bowel habit, or unexplained weakness to the specialist team.

Ask how many polyps were seen, which were removed, what the tissue analysis showed, whether the preparation limited the view, and what schedule is recommended. Ask when endoscopic control is no longer enough and how the wider FAP care plan addresses the stomach, small bowel, and family risk.