This page will bring together the latest evidence, guidelines and clinical updates on endoscopic screening and surveillance (gastroscopy and colonoscopy). It will cover who may benefit from screening, evidence-backed surveillance interval recommendations, what constitutes a high-quality examination, and the evidence behind factors that influence outcomes, including bowel preparation regimens, timing, technique, lesion detection, tissue sampling and complete polyp removal. It will also examine how new research may shape the prevention and early detection of gastrointestinal cancers. The aim is to provide patients and referring clinicians with clear, practical and evidence-based information to support appropriate testing, high-quality procedures, timely follow-up and informed decision-making.
