Based on recurrent inflammatory attacks, lack of autoantibodies, and response to IL-1 inhibition in some patients [12], BD could be depicted as a peculiar autoinflammatory disorder; on the other hand, BD shares with the autoimmune diseases the possibility of being treated with immunosuppressive agents, and therapeutic benefit observed in patients treated with interferon supports the hypothesis of a Th1-driven disease [85]. Here, IL1A is linked to Behcet disease.