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Common variable immunodeficiency (CVID) is one of the most common antibody deficiencies and about 20 % of patients with CVID develop an autoimmune complication. Behçet's disease (BD) is a rare vasculitis diagnosed by the presence of recurrent oral and genital ulcers. Gastrointestinal involvement in Behçet's disease may be. Here, we report an uncommon case where a patient suffered from BD and CVID, together