Secretory otitis media is a common disease in otolaryngology and can develop in all ages. The main cause is dysfunction or blockage of the eustachian tube, resulting in negative pressure in the middle ear, poor ventilation, and impaired drainage, which leads to fluid accumulation in the tympanic chamber. The main manifestations are ear congestion, ear blockage, hearing loss, or low-pitched tinnitus. In the acute stage, there may be ear pain. If treatment is not timely or complete, it may become chronic, resulting in tympanic membrane invagination, adhesions, destruction of the auditory chain and cholesteatoma formation, etc., which need to be taken seriously. Treatment: 1. Find the cause of the disease and release the cause of the blockage of the eustachian tube. Such as adenoid hypertrophy, nasopharyngeal masses, nasal-sinus disease. 2, improve the function of the eustachian tube, improve nasal ventilation. The vast majority of patients can be cured through regular treatment or improved significantly without surgical treatment. 3.Surgical treatment: including tympanic membrane puncture, tympanic tube placement, etc.