Oncology health care professionals' perspectives on the causes of mental health distress in cancer patients.

Oncology health care professionals were able to name a wide range of causes of mental health distress in their patients. These findings highlight the need to have explicit conversations with patients about their mental status and to explore their understanding of their suffering. A patient-centered approach that values the patient's conceptualization of their problem and their narrative to understanding their illness can improve the patient-provider relationship and facilitate discussions about patient-centered treatments.