A build-up of ear wax can occur due to narrow ear canals, overproduction of wax, aging, or improper cleaning methods like using cotton buds. Some people naturally produce more wax, while others may experience blockages due to environmental factors such as dusty working environments, frequent headphone or hearing aid use which can push wax deeper into the canal.
Additionally, individuals with skin conditions such as eczema or psoriasis may be more prone to wax build-up, as dry, flaky skin can mix with ear wax, making it harder to naturally exit the ear.
Wax can also accumulate suddenly after an ear infection, as the body produces excess wax to help trap and remove bacteria or toxins. This post-infection build-up can cause symptoms of fullness, pressure, and even temporary hearing loss.
It is also common for wax build-up to occur in just one ear, which can happen if you sleep predominantly on one side, as pressure from the pillow may prevent wax from naturally migrating out. Additionally, variations in ear canal shape between your left and right ear can affect how wax moves, leading to an uneven build-up.
As we age, ear wax production can change due to several factors. Glandular changes in the ear canal can lead to drier, harder wax that is more likely to become impacted. Additionally, slower skin cell turnover and reduced jaw movement (which normally helps wax migrate out) can make natural wax clearance less effective. Older adults are also more likely to use hearing aids or earplugs, which can push wax deeper into the canal.
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