Constipation is a common, treatable condition that can be experienced by all age groups. This article outlines the different types of constipation and explains how the condition is diagnosed. A comprehensive and person-centred assessment is fundamental to identifying constipation, and should include taking the patient’s clinical history and discussing any lifestyle factors that may be causing or contributing to the condition. This article also details the pharmacological and non-pharmacological interventions that nurses can employ in the management of constipation, including providing advice on lifestyle changes and the use of laxatives.