The mandible is one of the most commonly fractured facial bones, along with the nasal and zygomatic bones. The most common cause of fracture is trauma, such as a motor vehicle accident, a physical altercation, an industrial accident, a fall, or a contact sport injury. Because of its position and the complex anatomy and environment surrounding it, the mandible is extremely vulnerable and often breaks when a traumatic injury is made to the face. Complications of mandible fractures can range from 7 to 29%, depending on the severity of the injury, the location of the injury, and the number of areas affected. The most frequently encountered complications include infection, hardware failure, osteomyelitis, non-union, mal-union, and wound dehiscence. Here, we report an unusual complication of an expanding hematoma with left sided facial nerve paresis that resulted after 2 months of mandible fracture.