The proposed study will assess the psychological and physiological benefits of an emotional expression intervention in patients with renal cancer. Patients will be randomly assigned to an emotional expression writing group or to a neutral writing group. This study will also evaluate the extent to which psychosocial factors mediate the intervention program and predict patients' recovery and adjustment to treatment. Potential mediators include level of cognitive processing, social networks/interactions, and sense of coherence and ability to find meaning in the illness experience.