Welcome to Lahey's Center for Sexual Function, located at One Essex Center Drive in Peabody, Massachusetts. We are committed to helping men, women and couples with problems related to sexual function. Recognizing that sexual problems do not occur as a single entity but are associated with multiple factors, we take a multidisciplinary approach to evaluating and treating the total person or couple. We explore the full spectrum of possible causes, including medical, hormonal and psychological aspects of the complaints, and work closely with other departments within Lahey as necessary. As a member of the Sexual Dysfunction Task Force of the American Association of Clinical Endocrinologists (AACE), Dr. Guay has participated in groundbreaking research and assisted in the development of clinical guidelines for the diagnosis and treatment of male sexual dysfunction. Dr. Guay also speaks to audiences around the globe on topics including erectile dysfunction, diabetes and sexual dysfunction, and testosterone deficiency in women.