Mastoid pain may be acute lymphadenitis behind the ear, acute middle ear mastoiditis. 1. Acute lymphadenitis behind the ear: Mostly due to head and face infections, such as pharyngitis, tonsillitis, rhinitis and so on, causing inflammation and swelling of lymph nodes behind the ear. It may be accompanied by fever, elevated white blood cells and other clinical manifestations, and is usually caused by viral infection secondary to bacterial infection. 2. Acute middle ear mastoiditis: acute suppurative otitis media, not only the tympanic chamber, but also the eustachian tube, the tympanic sinus and the mucous membrane of the mastoid air cavity have different degrees of inflammatory changes, this acute inflammation of the mastoid is as a part of the whole otitis media and exists, it is developed and spread by certain severe acute suppurative otitis media, it is a complication of acute suppurative otitis media. Mastoid pain do not self-medication, need to consult a doctor as soon as possible after the systematic examination of a clear diagnosis and standardized treatment, to avoid delaying the condition.