Causes Of Earwax Buildup Earwax is a sticky substance that is made up of dead skin cells, and sweat mixed with dirt, and contains oil. The sweat glands in the skin of the human external auditory canal, together with sebaceous glands, produce ear wax . It has lubricating and self-cleaning agents with protective, emollient, and bactericidal properties. Ear wax build-up can be due to: Failure to self-clear because of slow skin migration Putting small things like cotton buds, hairpins, headphones ... Earwax, or cerumen, is a waxy substance found in your ears, but what does it do? Find out how earwax helps protect your ears from bacteria and other germs. Ear wax , medically known as cerumen, is a natural substance produced by glands in the ear canal to protect against dust, bacteria, and foreign particles. While ear wax usually clears out on its own, excessive buildup can cause discomfort, hearing difficulties, or even infections. Best way to remove stubborn earwax at home Avoid cotton buds or putting any object inside your ear canal. This can push the earwax deeper, potentially causing a ruptured eardrum or an ear infection. You can always get professional help to safely remove earwax . Find your nearest wax removal clinic, or alternatively, you can try these effective home remedies: