Guidelines for colorectal cancer screening in high risk groups.

The British Society of Gastroenterology (BSG) and the Association of Coloproctology for Great Britain and Ireland (ACPGBI) commissioned these guidelines. The aim is to provide guidance on the appropriateness, method, and frequency of screening people with diseases known to be associated with colorectal cancer. There is increasing awareness among relatives of patients with colorectal cancer that they may be at risk from this disease and there is rising demand for screening. These guidelines are for members of gastroenterology teams, primary care physicians, purchasers of health care, and people thought to be at increased risk of colorectal cancer.