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Unlike a traditional pimple, a milium usually does not have an opening that allows its contents to come out. That is one reason squeezing it often does nothing—and can potentially irritate or damage the delicate skin.
Milia can occur in people of all ages, including babies and adults. In newborns, they are especially common and generally disappear naturally. In adults, they can persist much longer.
Primary milia develop directly, while secondary milia can sometimes occur after skin damage, inflammation, burns, rashes, or certain treatments.
Why Do Milia Develop?
The exact reason some people develop milia is not always clear.
They form when keratin becomes trapped beneath the surface of the skin rather than naturally shedding. This creates a tiny cyst that appears as a white or pale bump.
Several factors may contribute to secondary milia, including previous skin irritation or injury. Certain heavy skin products may also make some people more prone to developing small bumps, although milia are not simply caused by having “dirty” skin.
This is important because aggressive cleansing or scrubbing usually does not solve the problem.
In fact, excessive exfoliation around the eyes can cause more irritation.
Milia Usually Aren’t Dangerous
The good news is that uncomplicated milia are generally harmless.
They typically do not cause pain, itching, or significant inflammation. Some disappear on their own, while others can remain for an extended period.
Because they are benign, treatment is often optional unless the bumps are bothersome for cosmetic reasons.
A dermatologist or other qualified healthcare professional can remove persistent milia using appropriate techniques. Professional removal is preferable to trying to puncture or squeeze the bumps yourself, particularly around the eyes.
Could It Be a Stye?
Not every eyelid bump is milia.
A stye, also known as a hordeolum, usually looks quite different. It often develops as a red, swollen, tender bump along the eyelid margin.