Bacterial otitis externa is an inflammation of the skin and subcutaneous tissues of the external auditory canal caused by bacterial infection, including diffuse otitis externa, limited otitis externa and necrotizing otitis externa. The disease is mainly recognized from the causes, lesions and effects of the disease, and patients need to go to the hospital in time for diagnosis and treatment.
1. Causes: Bacterial otitis externa can be caused by pathogens attacking the external auditory canal, skin damage of the external auditory canal and other factors.
2. Location: Bacterial otitis externa occurs in the ear canal, not in the tympanic membrane.
3. Disease effects: The symptoms of bacterial otitis externa mainly include burning sensation, pain, localized redness and swelling of the skin, and even narrowing of the external auditory canal.