What are milia?
Milia are tiny cysts of trapped keratin, the protein of dead skin cells, sitting just beneath the surface as firm, white, dome-shaped bumps, usually one to two millimeters across. They cluster around the eyes and on cheeks, and they are neither acne nor infection.
Cleveland Clinic describes milia as keratin-filled cysts under the skin surface, harmless and common at every age.
The defining feature: no opening. A pimple connects to a pore; a milium is sealed under intact skin. That is why it will not pop, why squeezing accomplishes nothing except skin damage, and why the harder you press the more likely you are trading a temporary bump for a permanent mark.
How milia are actually removed
Professionals remove them in seconds: a sterile lancet nicks the surface, the keratin pearl lifts out, done. Dermatologists and many estheticians do this routinely, cheaply, and scarlessly. That ease is exactly why home digging is the wrong trade; you cannot sterile-nick your own eye area, and the under-eye zone scars visibly.
Left alone, many milia resolve over weeks to months as skin turns over. Removal is cosmetic urgency, not medical necessity.
Preventing the next ones
Milia form when keratin gets trapped, so prevention means keeping turnover moving. Retinoids at night are the reliable lever, and gentle chemical exfoliation once or twice weekly assists; both also serve every other aging goal you have.
The overlooked trigger: heavy occlusive creams around the eyes. Rich balms in that thin-skinned zone can seal keratin in place, so recurring eye-area milia are a reason to switch to lighter eye formulas, our when to apply eye cream guide covers sensible amounts, and to skip slugging near the orbital bone.

