Ear root pain can be a symptom of otitis externa, otitis media, nerve pain, herpes virus infection and other conditions. Ear root pain cannot be predicted as a sign of which disease. 1. Otitis externa: when the resistance of the skin of the external auditory canal itself decreases or is damaged, microorganisms can enter and cause infection, and acute diffuse inflammation of the external auditory canal occurs, and the patient will have the symptom of ear root pain. 2. Otitis media: this disease is mainly caused by viral or bacterial infections, when the patient’s upper respiratory tract infection, viruses and bacteria can enter the middle ear through the Eustachian tube, which causes swelling and congestion, resulting in the exudate can not be discharged, triggering bacterial growth, resulting in otorrhoea. 3. Nerve pain: Since there are many nerves around the ear, if the inflammation of the throat involves the nerves, it will cause pain in the root of the ear. 4. Herpes virus: Herpes zoster virus may infect the skin of the ear, forming small blisters, due to the denseness of the blisters, which will lead to pain at the back of the ear, and the pain will be aggravated when touching. It is recommended that patients go to the hospital in a timely manner, after the doctor’s clear diagnosis, according to the patient’s specific performance, to take targeted treatment, life should pay attention to ear hygiene, to avoid the stimulation of noise.