Catarrhal otitis media is a non-suppurative inflammatory disease caused by obstruction of the eustachian tube and dysfunction of ventilation and drainage. It can develop in both children and adults and is a common cause of deafness in children. It is also known as exudative otitis media, catarrhal otitis media, plasmacytoid otitis media, plasmacytoid mucus otitis media, and nonsuppurative otitis media. Clinically, there are two types of otitis media: acute and chronic. Acute cicatricial otitis media is often caused by inflammatory obstruction (nasal and sinusitis, tonsillitis, adenoids, etc.), mechanical obstruction (turbinate hypertrophy, nasal septum curvature, nasal stuffing, etc.), and sudden changes in air pressure (aviation, diving, etc.). Chronic cicatricial otitis media is caused by inappropriate or incomplete treatment of acute cicatricial otitis media. The main symptoms in patients with acute catarrhal otitis media are ear congestion, a sense of ear occlusion, tinnitus, and hearing loss, with temporary improvement in hearing when blowing the nose, changing head position, or pulling on the auricle.” Self-hearing enhancement”, patients have the sensation of hearing their own speech sound particularly louder than usual. Examination: Hearing is conductive deafness with tympanic membrane congestion, invagination, and tympanic fluid accumulation. The main symptoms of patients with chronic catarrhal otitis media are tinnitus and deafness. Examination: Thickening or atrophy of the tympanic membrane, calcium deposition, tympanic membrane invagination, and poor vibration.