Milia are small, white bumps that form when keratin—a protein found in skin, hair, and nails—gets trapped beneath the surface of the skin.
Instead of shedding dead skin cells naturally, your skin traps them in tiny pockets. Over time, these harden into firm little cysts just beneath the surface.
Common Causes of Milia
Milia can affect people of all ages, but older adults may be more prone to them due to slower cell turnover and long-term skin damage. Here’s what might cause or worsen these tiny cysts:
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