Unilateral tinnitus should generally be alerted to the possibility of cerumen impaction, neurogenic tinnitus, and Meniere’s disease. 1. Cerumen impaction: Cerumen blockage due to the presence of earwax in the external auditory canal, and conductive tinnitus when the cerumen is close to the eardrum. 2. Neurogenic tinnitus: patients show different degrees of abnormal sound sensation in the ear, and the lesions can be in the cochlea, auditory nerve and auditory center, causing unilateral tinnitus. 3. Meniere’s disease: unilateral tinnitus may be caused by Meniere’s disease, the main manifestation of episodes of aggravation, while the intermittent period to reduce, usually unilateral, fluctuating hearing loss. If the symptoms of unilateral tinnitus persist, go to the hospital in time for examination and diagnosis, so as not to delay the condition.