Background: Caring for patients with advanced or terminal diseases can confront family caregivers (FC) with ethical challenges. The present study aims at tracing paths connected to ethical challenges among FC of advanced cancer patients by exploring morally troubling situations and related burden, as well as strategies to handle the situation and experience of moral distress from the grieving FC's perspective. Methods: Within a qualitative design, interviews with 12 grieving FC were conducted using a semi-structured interview guide.