This article aims to reveal the meaning of being-with-cancer to oncologic patient, trying to comprehend them in their living, discerning the discovery of new ways to deliver care. This study is based on the qualitative research methodology - phenomenological modality, realized with cancer patients who were aware of their diagnosis and were hospitalized at an institution specialized in oncology. Living a serious disease like cancer reverberates on the person's life in a significant way and affects his/her entire Being. The physical and psychical restrictions deriving from the disease imply significant changes, which may make the person become dependent or withdraw from social companionship. Moreover, the person suffers due to financial disarrangements and may come across the need to interrupt or give up of important life projects. The comprehension of what is lived by the person with cancer indicates the relevance of transformations in the philosophy of his/her care, including the need to discuss and share feelings.