Ear root pain may be caused by acute suppurative otitis media, tonsillitis, wisdom teeth pericoronitis or temporomandibular joint dysfunction and other diseases. 1. Acute suppurative otitis media: ear root pain may be caused by bacterial or viral infection invading the middle ear, causing acute inflammation and involving ear root pain. 2. Tonsillitis, pericoronitis of wisdom teeth: ear root pain may also be caused by tonsillitis, pericoronitis of wisdom teeth and other inflammation of neighboring tissues to stimulate the nerves, causing ear root pain. 3. Temporomandibular joint dysfunction: Inflammatory lesions of temporomandibular joint can lead to pain around the joint capsule, which is close to the anterior wall of the external auditory canal, which can be accompanied by ear root pain and limited opening of the mouth. It is recommended to go to ENT department for examination to identify the cause of the pain.