The paper analyzes the narrative in the field of medicine, which is not yet articulated in Russian research. However, it is extremely topical in the theoretical and practical sense, affects the moral and existential sphere of the relations between the patient and medical personnel and is oriented toward the development of narrative medicine and ethics. The article also considers the ethical side of the narrative about the disease associated with the actualization of the patient's existential experience, which causes the patient's personality to change and leads to his healing. This means internal transformation, the formation of an «improved» moral personality, the development of the desire to form new forms of the patient's social life, and, on this basis, to his strengthening in a new life.