Why does coughing occur when cleaning the ears?

The phenomenon of coughing when cleaning the ear may be related to stimulation of the vagus nerve within the ear canal. The nerve distribution in the ear canal and throat area is interconnected, particularly with the vagus nerve having branches in both the ear canal and throat regions. When cleaning the ear, if a cotton swab or other tool touches deep inside the ear canal, it may stimulate the vagus nerve, triggering a cough reflex. This phenomenon is a protective response of the body and not necessarily indicative of a disease. However, if the cough is accompanied by symptoms such as ear pain, hearing loss, or increased ear discharge, it may signal an ear infection or other ear-related conditions, which requires medical attention.

To avoid stimulating the vagus nerve and inducing coughing, it is advisable to avoid using sharp or deeply inserted tools when cleaning the ears. Instead, use soft cotton swabs and apply gentle pressure. Moreover, the ear canal has a natural self-cleaning function, and frequent ear cleaning may disrupt this natural protective mechanism, leading to infections or other discomforts. If the ear canal is accidentally injured or abnormal symptoms recur, prompt medical evaluation is recommended.