Milia in children are almost always harmless and resolve on their own without treatment. These tiny white or yellowish bumps, each only 1 to 2 millimeters across, are small cysts formed when a protein called keratin gets trapped just beneath the skin’s surface. About half of all newborns develop them, making milia so common they’re considered a normal part of infancy.
What Milia Look Like and Where They Appear
Milia show up as pearly white or yellow papules, firm to the touch and painless. They aren’t red or inflamed. In babies and young children, they cluster most often on the forehead, cheeks, nose, and chin, though they can also appear on the upper trunk, limbs, or even mucous membranes. Unlike a pimple, a milium has no surrounding redness and doesn’t come to a head with pus. It looks almost like a tiny grain of sand sitting just under the skin.
Why Children Get Them
Primary milia, the kind most babies are born with or develop shortly after birth, arise from the tiny hair follicles on facial skin. The follicle produces keratin, a structural protein, and occasionally some of that keratin gets trapped in a small pocket instead of shedding normally. In premature infants, milia may not appear right away but can show up several weeks after birth as the skin matures.
Secondary milia are less common in children but can develop after any kind of skin damage: a sunburn, a scrape, a blister, or even friction from rubbing. These form when the healing skin traps keratin in the same way. If your child develops milia in a spot where the skin was recently injured, that’s the likely cause.
How Long Milia Last
In babies, milia typically clear up within a few weeks after birth. Some cases linger for two or three months, but the bumps will resolve on their own as the skin’s natural turnover cycle pushes the trapped keratin to the surface. No intervention speeds this process in a meaningful way for infants. In older children, milia can sometimes persist longer, especially secondary milia that formed after skin trauma, but most still disappear without treatment over the course of weeks to a couple of months.
The Best Approach for Babies Under 6 Months
For infants, the recommendation is straightforward: leave the bumps alone. Don’t squeeze them, pick at them, or try to pop them. The skin is too delicate, and any manipulation risks irritation, infection, or scarring that’s far worse than the milia themselves. You don’t need any special creams, exfoliants, or treatments.
Keep your baby’s face clean with lukewarm water and, if needed, a gentle fragrance-free cleanser. Pat the skin dry rather than rubbing. Avoid thick lotions or oily products on the face, since heavy moisturizers can block the tiny follicles and potentially slow the process. That’s genuinely all you need to do.
Caring for Milia in Older Children
For children past infancy, the same gentle approach applies as a starting point. Wash the affected area daily with a mild, paraben-free soap and lukewarm water. Harsh cleansers strip the skin of its natural oils, which can trigger more irritation without helping the milia resolve.
Steam can help soften the skin and encourage the trapped keratin to work its way out naturally. You can have your child sit in a bathroom with a hot shower running (not in the shower itself) for five to eight minutes, letting the warm steam open the pores. Afterward, pat the face dry and rinse with lukewarm water. This is a gentle, low-risk approach that some families find helpful for persistent bumps.
Products to Avoid
Many over-the-counter acne or exfoliating products contain ingredients that aren’t safe or appropriate for children. Salicylic acid, a common exfoliant in adult skincare, is restricted in products for children under 3 entirely. For children ages 3 to 10, only very low concentrations (around 0.1% to 0.15% in leave-on products) are considered safe for the skin. Higher concentrations found in typical acne washes and peels can irritate a child’s skin and even cause eye damage. Retinoid creams, another common adult milia treatment, are not recommended for young children. The simplest rule: don’t apply any adult skincare product to your child’s face without checking with a pediatrician or dermatologist first.
When a Dermatologist Can Help
If milia persist for several months in an older child, or if they’re large, numerous, or bothering your child, a dermatologist can remove them in a quick office visit. The standard technique involves making a tiny nick in the skin over the cyst with a sterile needle, then gently pressing out the trapped keratin with a small tool. It’s fast, causes minimal discomfort, and leaves little to no scarring.
For multiple milia, dermatologists sometimes use a low-level electrical current to break down the cysts. Both approaches are considered safe with very low risk of scarring or changes in skin color afterward. These procedures aren’t typically needed for babies, since waiting a few weeks almost always takes care of the problem.
Milia vs. Other Common Skin Bumps
Parents sometimes confuse milia with baby acne or heat rash, but the three look quite different once you know what to check for.
- Milia are firm, white or yellowish dots with no redness around them. They don’t itch, don’t change size, and appear mainly on the face.
- Baby acne looks more like traditional acne: small red or pink bumps, sometimes with visible whiteheads or blackheads. It tends to cluster on the forehead, nose, and cheeks and can look inflamed.
- Heat rash (miliaria) develops when sweat gets trapped under the skin. The superficial form appears as tiny clear blisters without redness, usually on the head, neck, and trunk. The deeper form, often called prickly heat, produces small red bumps on areas of skin covered by clothing. Heat rash is triggered by overheating and improves once the child cools down.
If the bumps are red, spreading, warm to the touch, or oozing, they’re not milia, and your child’s pediatrician should take a look. The same applies if bumps appear near the eye in a way that seems to be affecting your child’s comfort or vision. But classic milia, those small pearly-white dots sitting calmly on the skin, are one of the most benign conditions in pediatric dermatology. In nearly every case, patience is the only treatment needed.