Common causes of buzzing sound in the ear include neurogenic tinnitus, otitis media and cerumen impaction. 1. Neurogenic tinnitus: mostly due to poor circulation in the inner ear, resulting in dysfunction of the sound transmitting pathway and buzzing sound in the ear, sometimes accompanied by hearing loss. 2. Otitis media: If there is secretory or purulent otitis media, which leads to negative pressure or fluid accumulation in the middle ear cavity, when it stimulates the cochlea of the inner ear, the sound in the ear can be buzzing, often accompanied by hearing loss and stuffy feeling. 3. Cerumen impaction: Long-term cerumen accumulation, especially near the tympanic membrane, can be conscious of the buzzing sound in the ear, and can be briefly relieved by pulling the outer ear or pressing on it. Therefore, the causes of tinnitus are many and complex, and it is recommended to go to regular hospitals for diagnosis and treatment.