The aim of this phenomenological study was to explore caring and uncaring encounters with nurses and other health professionals from the perspective of the person who has been diagnosed and treated for cancer. Through thematic analysis of in-depth dialogues with five women and four men in the remission or recovery phase of cancer, three major categories regarding caring and uncaring encounters were identified. The essential structure of a caring encounter was found to be threefold: 1. the nurse/health professional perceived as caring: an indispensable companion on the cancer trajectory; 2. the resulting mutual trust and caring connection; and 3. the perceived effect of the caring encounter: a sense of solidarity, empowerment, well-being, and healing. The essential structure of an uncaring encounter is also threefold: 1. the nurse/health professional perceived as uncaring: an unfortunate hindrance to the perception of well-being and healing; 2. the resulting sense of mistrust and disconnection; and 3. the perceived effect of the uncaring encounter: a sense of uneasiness, discouragement, and a sense of being broken down. The findings emphasize the primacy of competence in professional caring, as well as that of genuine concern, openness and a willingness to connect with others. The often devastating effects of uncaring encounters on the recipient of nursing and health care raises the question whether uncaring as an ethical and a professional problem should perhaps be dealt with as malpractice in nursing and health care.