It is estimated that there are 850 000 people with dementia in the UK, and 53% of them have incontinence. Dementia adds an extra challenge to managing a patient's continence. This article discusses that challenge, looking at the nature and causes of incontinence, the effects that ageing has on continence and the associated complications. It then examines the nature of dementia and some of its causes and goes on to show how the symptoms of dementia can impact on a person's continence. The article highlights the important of conducting a thorough assessment of a person with dementia who experiences incontinence, including medical history, medications and symptom profile. Using a bladder diary, the importance of involving relatives and carers, physical examination and ‘red-flag’ symptoms to be aware of are also discussed. Lastly, this article talks about creating a strategy to manage a patient's incontinence, including prompted toileting, medication, using incontinence pads, catheterisation, care planning and supporting relatives and carers.