There are many reasons why the ear canals of patients become small: 1) It is likely that the mucous membrane of the ear canals of patients is often and repeatedly inflamed, and the surrounding skin in the ear canals will gradually become thicker, so it leads to the ear canals of patients become small. 2) It is likely that the patients are due to the presence of a large amount of earwax in the ear canals, which also makes the ear canals become very narrow. 3) The patients may have something growing in the ear canals, such as granulomas or cholesteatomas, which will need to be solved by surgery. After the surgery, if the patient’s ear canal mucosa localized adhesion, it is also easy to cause the patient’s ear canal to appear narrow symptoms. It is recommended that patients avoid repeated ear digging in their lives, and if discomfort occurs, they must consult a doctor in a timely manner.