Inflammatory myofibroblastic tumor is a local aggressive behavioral neoplasm of unknown etiology. Pulmonary, gastrointestinal, genitourinary system, retroperitoneal are frequently seen. The diagnosis, history, physical examination, laboratories and imaging methods are limited. There is a potential for recurrence. In this article we present a bladder inflammatory myofibroblastic tumor diagnosed in a female patient with pelvic pain and dysuria complaints.