About Nancy Keuthen, PhD

Dr. Nancy Keuthen is a graduate of Brown University and the clinical psychology program at Stony Brook University. She completed her internship at the Brockton-West Roxbury Veterans Administration Medical Center. Since 1986 she has been on staff at Massachusetts General Hospital and faculty at Harvard Medical School. Since 2001 she has been associate professor of psychology (psychiatry) at Harvard Medical School. She is the former director of the Cognitive Behavioral Therapy Program at Massachusetts General Hospital.

Dr. Keuthen has been chair, vice-chair and member of the scientific advisory board of the Trichotillomania Learning Center and member of the scientific advisory board of the International Obsessive-Compulsive Disorder Foundation. She has been guest editor for several scientific journals. She is a founding member of the International Trichotillomania Research Consortium.

Dr. Keuthen has made important contributions to the diagnosis, etiology and treatment of obsessive-compulsive disorder as well as the related disorders of trichotillomania, pathological skin picking and body dysmorphic disorder. Her bibliography lists nearly 100 peer-reviewed publications in this field in addition to a book, numerous chapters, educational materials and Internet-based self-help materials.

Clinical Interests:



Mass General Psychiatry: Adult Outpatient Psychiatry Services
55 Fruit St.
Wang Ambulatory Care Center
Boston, MA 02114
Phone: 617-724-7792

Mass General Psychiatry: Obsessive-Compulsive Disorder & Related Disorders Program
185 Cambridge St.
Simches Research Center
Suite 2000
Boston, MA 02114
Phone: 617-726-6766

Medical Education

  • PhD, Stony Brook University School of Medicine
  • Fellowship, McLean Hospital

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Dr. Keuthen has maintained broad research interests in the field of OCD and OC spectrum disorders including trichotillomania, pathological skin picking and body dysmorphic disorder. She has conducted psychosocial and pharmacological treatment outcomes research, documented longitudinal disorder course, explored brain structure and function, developed numerous assessment instruments, and currently is conducting genetics and family studies in this field. She has been the recipient of foundation and benefactor funding for her research.


  • See PubMed for recent publications.

    Keuthen NJ, Koran LM, Aboujaoude E, Large MD, Serpe RT. The Prevalence of Pathological Skin Picking in U.S. Adults. Compr Psych 2010;51: 183-186.

    Flessner CA, Penzel F, Trichotillomania Learning Center-Scientific Advisory Board, Keuthen NJ. Current treatment practices for children and adults with trichotillomania. Cog Behav Pract 2010; 17: 290-300.

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