Male sexuality in adolescence and early adulthood is characterized by autonomous, predictable erections. As males age, however, their arousal becomes less predictable and more dependent on partner interaction. This transition can produce anxiety. Many males view this change as a medical dysfunction requiring pharmacologic treatment or specialist intervention. New medical interventions, including Viagra, have been developed promising to return males to their automatic erections. A medical approach, however, fails to address the multidimensional nature of male sexuality and reinforces sex as intercourse performance. This article outlines a biopsychosocial approach to the assessment, treatment, and relapse prevention of male sexual dysfunction.