A traumatic or amputation neuroma can develop as a result of nerve injury caused by hemorrhage, infection, ischemia, trauma, etc. A traumatic neuroma can be considered as the attempted regeneration of the amputated nerve rather than a true neoplasm. Occasionally, a traumatic neuroma will develop after oral or maxillofacial surgery. Here, we report a case of traumatic neuroma after mandibular angle reduction in a 24-year-old woman.