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When a person has some symptoms associated with a disease or condition, they are considered symptomatic. When a disease exists without noticeable symptoms, the person is asymptomatic.
Updated by: Linda J. Vorvick, MD, Clinical Professor Emeritus, Department of Family Medicine, UW Medicine, School of Medicine, University of Washington, Seattle, WA. Also reviewed by David C. Dugdale, MD, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.