It is possible for a brain injury to affect hearing in the ear. Usually brain injuries are less likely to affect hearing, but hearing loss may occur in the following situations. More commonly, a traumatic brain injury causes a fracture of the middle skull base at the same time as the brain injury, resulting in injury to the facial and auditory nerves, which may result in hearing loss, tinnitus, facial paralysis and cerebrospinal fluid leakage from the ear. Brain injury may cause left temporal lobe contusion or cerebral hemorrhage, and damage to the brain tissue in the left temporal lobe often results in obstruction of the auditory pathway and failure of auditory signals to be transmitted properly, leading to the occurrence of aphasia and memory dysfunction of different natures. A very small number of patients with brain injury did not damage the auditory nerve, but the trauma injury to the tympanic membrane and the middle ear, perforation of the tympanic membrane, the auditory ossicular chain detachment or interruption, thus causing conductive deafness and will affect the hearing of the. When brain injury affects hearing, it is recommended to go to the neurosurgery or otolaryngology department of regular hospitals as soon as possible, so as to avoid delaying the condition and leading to poor recovery of the patient’s hearing.