Traumatic eosinophilic granuloma is a benign, self-limited ulceration of the oral mucosa that presumably has a traumatic etiology. The ulcer occurs on easily traumatized areas, most commonly the dorsal or lateral tongue. The lesions may be asymptomatic or associated with mild pain. They often occur in two vulnerable populations: infants who are nursing or teething and older adults who may have dental appliances.

The reported range of duration is from 1 week to 8 months.