In a study by Çiçek et al., which included 25 patients with Behçet’s disease, 30 patients with recurrent aphthous stomatitis (RAS), and 25 healthy controls, the low serum and salivary prohepcidin and hepcidin concentrations observed in RAS and Behçet’s patients suggested a potential role for hepcidin in the etiopathogenesis of these diseases. The gene discussed is HAMP; the disease is Behcet disease.