Gastrointestinal disorders cover a wide spectrum of diseases which differ widely in their signs and symptoms, severity, treatment options and long-term prognosis, as well as their impact on the quality of life of those affected. They can affect any part of the gastrointestinal tract and many can occur at any age, although as with other conditions, some are more prevalent in specific age groups. This article focuses on only three of the many diseases which fall into this category to give community nurses and non-medical prescribers a brief insight into their recognition, management and treatment, with the aim of increasing confidence and knowledge of the diseases discussed.