Catarrhal otitis media, or secretory otitis media, is a relatively common ear disorder that can be triggered by a variety of causes, such as infection and Eustachian tube malfunction. The incidence group is mainly children. The clinical manifestations of otitis media mainly include ear pain, occlusion in the ear, hearing loss, tinnitus and so on. 1. Earache: acute secretory otitis media can have earache at the beginning of the disease, the pain can be mild or severe, some children come to the emergency room at night because of earache. Some children come to the emergency room at night because of earache. Chronic cases do not have earache. 2. A sense of occlusion or stuffiness in the ear is a common complaint among adults, and this sense of occlusion can be temporarily alleviated by pressing the ear screen. 3. Hearing loss: If children watch TV with the sound turned up, they should pay attention to it and seek medical attention in time for professional examination, such as otoscopy and audiological examination. Acute secretory otitis media patients have a history of colds a few days before the onset of the disease, and then hearing gradually decline, accompanied by self-hearing enhancement, when the fluid in the ear is less, by changing the position, hearing can be temporarily improved. 4. Tinnitus: Intermittent tinnitus, often a low-pitched roaring sound, can occur in some patients when yawning, blowing the nose, or changing the head position, and can also occur when the sound of air passing through the water, or self-hearing enhancement. It is recommended that patients with cicatricial otitis media should seek medical attention in time to clarify the cause of the disease, and be treated and medicated under the guidance of a doctor.