Children who grow up together with a parent with mental illness have been updated in a comprehensive report carried out by the National Board of Health and Welfare in 2020, where it emerged that children easily become invisible in the shadow of their parent. The study has been based on a qualitative research method with an inductive approach. It aims to shed light on how adults who grew up with a parent with mental illness have experienced their childhood and how they handle it today. To investigate this, six interviews from different podcasts were used, which were then analyzed based on the method, thematic analysis. The results of the study showed that children as relatives of a parent with mental illness become invisible in society due to the organizational structure of welfare, stigma in society and that the child maintains a front facade that makes it difficult for the surroundings to discover the child's situation. The results also showed that the adult took the initiative to try to help other people who live or lived in a similar situation as them. When a parent with mental illness lives with their child, it affects the child into adulthood and on to future generations. It is a complex social problem where the stigma in society can prevent the child from seeking help.