There is radiating pain behind the ear, which is generally related to acute otitis media, otitis externa or neuralgia. If there is radiating pain, it is recommended to go to the otorhinolaryngology department for examination, to check the eardrum and external auditory canal. If acute inflammation is excluded from the eardrum and external auditory canal, the pain may be neuralgia. In addition, it is suggested that if there are hearing problems, the hearing diseases should be eliminated. If the symptoms of hearing, eardrum and external auditory canal are eliminated, the pain can be related to neuralgia. It is recommended to go to the neurology department or pain department for further troubleshooting to check the cause of the pain. This pain has nothing to do with the ear itself, because neuralgia radiates to the back of the ear.