Earwax, also known as cerumen, is a natural substance produced by glands in the ear canal. It serves several important functions, including protecting the ear from dust, debris, and microorganisms. Earwax also helps to lubricate the ear canal, preventing dryness and irritation. There are two main types of earwax: wet and dry. Wet earwax is sticky and yellowish, while dry earwax is flaky and gray. The amount and type of earwax a person has can vary based on genetics and environmental factors. Regular cleaning is usually not necessary, as the ear is self-cleaning and excess earwax typically works its way out naturally.