Hives (urticaria) are raised, red, itchy welts. The majority of
urticaria develop as a result of allergic reactions. Occasionally,
they may be associated with autoimmune diseases, infections
(parasitosis), drugs, malignancy, or other causes.
Review Date: 05/02/2010
Reviewed By: David C. Dugdale, III, MD, Professor of Medicine, Division of
General Medicine, Department of Medicine, University of Washington
School of Medicine. Stuart I. Henochowicz, MD, FACP, Associate
Clinical Professor of Medicine, Division of Allergy, Immunology,
and Rheumatology, Georgetown University Medical School. Also
reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.
A.D.A.M., Inc. is accredited by URAC, also known as the American Accreditation HealthCare Commission (www.urac.org)
