A small meatball in the ear is considered to be related to sebaceous cysts, hyperplastic granulation, boils in the external auditory canal, and congenital attachment of the ear. 1. Sebaceous cyst: The sebaceous gland opening is blocked due to bacterial infection, excessive secretion and other factors, resulting in excessive collection of metabolites and the formation of granulomatous lesions. 2. Hyperplastic granulation: Hyperplastic granulation can be caused by repeated infections of the external auditory canal tract and untreated. 3. Boils in the external auditory canal: Localized boils caused by damage to the external auditory canal or bacterial infections often have localized redness, swelling, heat and pain, and the nodules are hard to touch. 4. Congenital attachment of the ear: it is a congenital developmental abnormality, which is caused by the abnormal development of the first gill arch, and there is often cartilage tissue within its tissue. If you have a meatball in your ear, you need to go to the hospital in time to find out the specific cause and treat it, so as not to delay your condition.