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Diseases

Genetic and Rare Diseases Information Center (GARD)

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Behcet's disease


Other Names for this Disease

  • BD
  • Behcet disease
  • Behcet syndrome
  • Behcet's syndrome
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Cause

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What causes Behcet's disease?

The exact cause of Behçet's disease is unknown. Most symptoms of the disease are caused by inflammation of the blood vessels. Inflammation is a characteristic reaction of the body to injury or disease and is marked by four signs: swelling, redness, heat, and pain. Doctors think that an autoimmune reaction may cause the blood vessels to become inflamed, but they do not know what triggers this reaction. Under normal conditions, the immune system protects the body from diseases and infections by killing harmful "foreign" substances, such as germs, that enter the body. In an autoimmune reaction, the immune system mistakenly attacks and harms the body's own tissues.[1]

Behçet's disease is not contagious; it is not spread from one person to another. Researchers think that two factors are important for a person to get Behçet's disease. First, it is believed that abnormalities of the immune system make some people susceptible to the disease. Scientists think that this susceptibility may be inherited; that is, it may be due to one or more specific genes. Second, something in the environment, possibly a bacterium or virus, might trigger or activate the disease in susceptible people.[1]

Last updated: 8/31/2011

References
  1. Calamia KT, Jorizzo JL, Mittleman B, Witter J, Rogers III, RS. Behcet's Disease. National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIAMS). April 2009; http://www.niams.nih.gov/Health_Info/Behcets_Disease/default.asp. Accessed 8/31/2011.


Other Names for this Disease
  • BD
  • Behcet disease
  • Behcet syndrome
  • Behcet's syndrome
See Disclaimer regarding information on this site. Some links on this page may take you to organizations outside of the National Institutes of Health.