First, inflammatory infections of the auricle, commonly after trauma to the auricle or local skin breakdown of the auricle, resulting in inflammation of the auricular cartilage and cartilage membrane, commonly known as purulent auricular chondromalacia, which manifests as pain at the ear, localized redness and swelling, or even localized pus, and can form fluctuating sensations and other related changes. Secondly, sebaceous cyst infection on the auricle, also known as chancroid infection, can cause localized pain and even pus after infection and other related changes. Third, herpes zoster in the auricle can cause nerve pain when the herpes invades the surrounding nerves. Fourth, acute otitis externa, herpetic tympanitis, acute otitis media and other related diseases can cause pain and inflammation radiating to the entire ear, resulting in ear pain. Fifth, lymphadenitis around the ear and other related diseases. Inflammation of the lymph nodes can cause pain around the ear, especially when pressure is applied. Sixth, temporomandibular joint disorder syndrome, which manifests as localized joint pain around the ear, mainly when opening the mouth in front.