Granulomas in the ear are usually seen clinically in the following cases: I. Chronic suppurative otitis media, especially cholesteatoma-type otitis media, due to long-term inflammatory stimulation, inflammatory granulomas of the middle ear tympanic chamber mucosa protrude into the ear canal through the tympanic membrane perforation, which is the tip of the iceberg of the lesion, and usually require mastoid radical surgery for treatment. Second, granulomas of the external auditory canal, most of which are caused by long-term foreign body irritation and secondary infection in the external ear canal, especially if the specific medical history has been forgotten. Third, malignant tumors of the external auditory canal and middle ear mastoid cavity, commonly squamous cell carcinoma, usually require biopsy of the ear canal for pathology to confirm the diagnosis and require surgery plus radiation therapy.