The most common causes of ear blockage and buzzing are as follows. If there is cerumen embolism in the external ear canal, the ears may also become stuffy and blocked with a buzzing sound. If there is a secretory otitis media, the eustachian tube is blocked and the ear is also blocked and buzzing. In addition, neurovascular factors, such as lack of rest and sleep, insufficient blood supply to the brain, often stay up late, excessive mental tension, etc., will also appear ear plug buzzing. Therefore, it is important to clarify the cause of the ear blockage buzzing and take appropriate treatment measures according to the different causes. Otherwise, if the symptoms are further aggravated, it is likely to affect the hearing and also the blood supply to the brain.