Cancer and sexuality are two complex and intimately linked fields that give rise to different social representations, influencing the way their sexualities are approached. People with cancer may face challenges that influence their sex lives due to the adverse effects of the disease and its treatments. And because of alterations in identity, body image and taboos surround their sexualities. These factors can contribute to negative perceptions about sexuality in cancer patients. It is essential to understand and recognize the various social representations in order to provide adequate support to people with dementia, while integrating a mixed methodology, through life stories with people with dementia, as well as questionnaires dealing with the sexuality axis. Stereotypes, prejudices, and social norms can contribute to stigmatization of these patients, and to the reinforcement of taboos, which can limit open discussion about sexuality during and after cancer and the enjoyment of a fulfilling and pre-cancer life. For an in-depth study of sexuality and cancer, it is imperative to adopt a multidisciplinary approach and collaboration between the social sciences, life sciences and earth sciences, through a sociological perspective.