A murmur in the ear of a child may be a foreign body in the ear canal, tinnitus, otitis media, and so on. 1. Foreign bodies in the ear canal: When cerumen (commonly known as earwax) or tiny hairs irritate the tympanic membrane through the ear canal, resulting in shaking of the tympanic membrane, the symptom of murmur in the ear will appear. 2. Neurotic tinnitus: When there is too much mental stress and not enough sleep, it may cause neurotic tinnitus, resulting in a murmur in the ear. 3. Otitis media: chronic suppurative otitis media patients can appear low-pitched tinnitus; secretory otitis media patients in the head movement or yawning, pinching the nose and drumming, there can be gas in the ear over the sound of water. All can be manifested as a murmur in the ear. Children have a murmur in the ear, there may be other reasons, it is recommended to go to the hospital in a timely manner, improve the examination to clarify the cause of the disease, under the guidance of the doctor to give targeted treatment or treatment.