Abstract
Behçet's disease is a chronic inflammatory disorder of unknown origin and intestinal Behçet's disease is a rare phenotype. We herein report a case of Behçet's disease with a long duration that was difficult to diagnose. A 56-year-old woman complained of recurrent oral aphtha, fever, skin eruption and abdominal pain for 10 years without diagnosis. Thereafter, multiple symptoms occurred and Behçet's disease was subsequently diagnosed by endoscopy. To diagnose recurrent oral aphtha, it is important to check the clinical history and systemic symptoms.