Dementia remains a significant health and social care concern in the UK. Cases of dementia are expected to increase exponentially because more people are living longer. In response, the government has issued a set of policies and guidance to better meet the needs of those living with dementia. However, one important relational aspect is notably absent from most policy documents: sexuality. This can be a complicated issue in relationships affected by dementia. This article analyses the literature and uses case studies to provide practical guidance to nurses in relation to sexual expression in people with dementia.