Earwax, also known as cerumen, is a natural substance produced by the glands in the ear canal. It plays a crucial role in maintaining ear health by trapping dust, debris, and preventing the entry of harmful microorganisms into the ear. However, under certain conditions, earwax buildup can occur. Some common causes include age, narrow or twisted ear canals, skin infections, and other injuries. It's important to note that while earwax buildup is a common issue, not everyone experiences problems with it. In many cases, the ear's self-cleaning mechanism is sufficient to prevent excessive wax accumulation.