This paper explores the impact of dementia on the selfhood of women, specifically the ways in which changes occur as a result of such a diagnosis. Interviews were conducted with 12 women (recruited from the Improving the Experience of Dementia and Enhancing Active Life programme dataset), and analysed using interpretative phenomenological analysis. Emergent themes concerned the process of receiving and adjusting to a dementia diagnosis, the emotional and psychological impact of dementia, self-presentation and stigma and the self-enforcement of new boundaries. The analysis showed that dementia had a wide-ranging impact on the selfhood and identity of women, with newfound characteristics associated with the disease leading to a loss of self-esteem, sadness and anger. The women subsequently engaged in the modification of their behaviour, as a means of coming to terms with the losses experienced.