What is the purpose of cerumen in the ear?

The primary purpose of cerumen, commonly known as earwax, is to lubricate and protect the ear. Cerumen is produced by glands in the external auditory canal and serves several vital functions. It helps to keep the skin in the ear canal moist, preventing dryness and potential itching or irritation. Additionally, cerumen acts as a natural barrier, trapping dust, debris, and microorganisms, which aids in protecting the delicate structures of the ear from external threats.

Beyond lubrication and protection, cerumen has a slight acidic pH, which can help to inhibit the growth of harmful bacteria and fungi, thus contributing to ear health. While it does play a role in overall ear health and prevention of infection, its primary functions revolve around lubrication and protection.