A hard object growing in the child’s ear canal may be a boil on the external auditory canal, a sebaceous cyst, or a cholesteatoma of the external auditory canal, etc., and the cause of the problem should be identified in a timely manner. 1. Boil on the external auditory canal: it is an acute limited purulent lesion on the skin of the external auditory canal, and the patient will have pressure and pain on the ear screen, and will feel pain when chewing. 2. Sebaceous cysts: these are retention cysts formed by localized obstruction of sebum excretion, which occur in sebaceous gland-rich areas, and can also lead to a pimple inside the patient’s ear. 3. Cholesteatoma of the external auditory canal: it is a cystic mass formed by the skin desquamation and epithelial wrapping of the external auditory canal, which can also lead to the symptom of growing a lump inside the ear. If the child appears to have a hard thing growing inside the ear canal, it is recommended that parents bring to the hospital in time, ask the doctor to clarify the cause of the disease and give targeted treatment.