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Graves' disease is an autoimmune disorder that causes your thyroid gland to create too much thyroid hormone. Learn the symptoms and your treatment options.
An autoimmune disease develops when the immune system, which defends the body against disease, attacks healthy body cells.
Behcet's disease is a rare disorder that causes blood vessels to become inflamed. Also known as Behcet's syndrome, this condition has several symptoms that may not otherwise seem related.