The most common causes of tinnitus in children include cerumen in the external ear canal, colds, foreign bodies in the external ear canal, secretory otitis media, drug-induced deafness, and congenital deafness, etc. It is recommended that a definitive diagnosis be made with the help of a doctor. Tinnitus is not a disease per se, but a clinical symptom, and many kinds of diseases can be manifested by tinnitus. The most common causes in children include cerumen in the external ear canal, colds, foreign bodies in the external ear canal, and secretory otitis media. Drug-induced deafness and congenital deafness, among others, can be clearly diagnosed through medical history, specialty examination, audiological examination and imaging. Parents should take their children to the hospital as soon as possible when children have tinnitus to clarify the cause of tinnitus, so as not to delay the diagnosis and treatment and cause damage to the child’s hearing.