Pain in the preauricular bone may be caused by trauma, otitis media, or mandibular arthritis. 1. Trauma: If there is a history of collision before the occurrence of ossicular pain, the pain may be caused by fracture due to trauma. 2. Otitis media: Inflammation of the middle ear caused by viral and bacterial infections, patients will have pain in the preauricular bone, pus in the ear canal, hearing loss, tinnitus and other symptoms, and inflammation invades the area in front of the ear can cause pain in the preauricular bone. 3. Mandibular arthritis: that is, temporomandibular joint disorder, patients will have symptoms such as preauricular bone pain, joint popping, teeth grinding, difficulty in opening the mouth. It is recommended that patients actively consult the doctor for a clear diagnosis.