Are closed comedones and whiteheads the same thing?
Yes. A whitehead is a closed comedone, which is a plugged pore covered by a thin layer of skin. The word "whitehead" is just the everyday version.
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Dermapedia / CompareConditions
Closed Comedones vs Milia
A closed comedone is a plugged pore. It is a soft, skin-coloured or whitish bump that comes and goes with the rest of your skin, and acne treatment clears it. Milia are keratin sealed inside a closed pocket. They are harder, whiter, and they sit in the same spot for months. Acne treatment does almost nothing to them. Soft and changeable means a comedone, hard and unchanging means a milium.
At a glance
| The difference | Closed comedone | Milia |
|---|---|---|
| What it is | Oil and dead skin blocking a pore | A tiny cyst full of keratin |
| What it looks like | A skin-coloured or dull white bump | A firm bright white bead |
| How it feels | Soft, and it moves | Hard, and it stays |
| What it does over time | Comes and goes | Stays put |
Side by side
The differences that matter
What it is
Closed comedone
Oil and dead skin blocking a pore
The pore still exists and still has an opening, but it is plugged and covered by a thin layer of skin. Normal skin bacteria feed on the trapped oil.
Milia
A tiny cyst full of keratin
Keratin is the protein that makes up the surface of your skin. A small amount gets sealed into a closed pocket, and there is no opening at all.
What it looks like
Closed comedone
A skin-coloured or dull white bump
Slightly raised, matt rather than shiny, and easiest to see in side lighting. In groups the skin looks bumpy and uneven rather than spotty.
Milia
A firm bright white bead
Round, dome-shaped, and clearly whiter than the skin around it. It looks like a grain of sand sitting just under the surface.
Size
Closed comedone
One to three millimetres
Can swell into a red pimple if it becomes inflamed.
Milia
One to two millimetres
Pinhead-sized, and it stays exactly that size.
How it feels
Closed comedone
Soft, and it moves
Press it and it gives. The skin over it is thin, and the bump can be flattened for a moment.
Milia
Hard, and it stays
Press it and there is a solid bead. Nothing comes out however hard you push, because it is sealed.
Where it shows up
Closed comedone
Forehead, chin and jawline
The oily parts of the face. Also the chest, upper back and along a hairline where product builds up.
Milia
Around the eyes
Eyelids and under the eyes most of all, then the nose and cheeks. Milia also appear on skin that was burned, blistered or scarred.
Where it appears
Milia
Eyelids, under the eyes, cheeks and nose
Milia turn up most often on the eyelids, under the eyes, and on the cheeks, nose and forehead. In newborns they sit across the nose, chin and cheeks, and sometimes on the gums or the roof of the mouth. They are firm and white, and they do not come to a head.
What it does over time
Closed comedone
Comes and goes
Numbers rise and fall with your routine, your hormones and the products you use. An individual comedone clears in days to weeks, or turns into a pimple.
Milia
Stays put
It sits still for months. Some clear on their own eventually, and some do not.
Milia
Adapalene
The over-the-counter retinoid, used at night. It speeds up how the duct lining sheds, which over two to three months lowers how many new milia form. It will not open or empty the ones you already have, because nothing applied to intact skin can reach a sealed sac. Start a few nights a week, and keep it off the eyelids themselves. Ask your doctor about it if you are pregnant or trying to become pregnant.
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Salicylic Acid
A gentle leave-on exfoliant that helps keep small ducts clear, which is prevention rather than treatment. It does nothing to a milium that has already sealed over. Low strength, a few times a week, and not on eyelid skin, which is thin and irritates easily.
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Glycolic Acid
Keeps the surface layer shedding evenly, on the same prevention logic as salicylic acid. Low strength only. Strong glycolic peels are the opposite of helpful here — deep peeling is one of the recognized causes of milia in the first place.
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A daily sunscreen
Not a milia treatment, and it will not stop new ones forming. It is here for what is left behind: a mark from an extraction or from picking darkens and lasts longer with sun on it, and that matters more on deeper skin tones. The useful window is the few weeks after a bump has been removed.
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A lighter cream around the eyes
Thick eye creams and balms get blamed for milia constantly. The evidence is weak and plenty of people get milia while using nothing at all, so this is not a reliable fix and it will not clear the bumps already there. If you keep getting them in the exact spot where a heavy product sits, switching to something lighter costs nothing and is worth trying.
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Scrubs, brushes and pore strips
These are what most people try first, and they cannot work. A scrub abrades the surface, and the sac sits under an intact surface. A pore strip needs an opening to grip, and a milium has none. What scrubbing does achieve is irritation, which is not neutral here, because repeated injury to one area can seal off new ducts.
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Comedone Extraction
The definitive treatment, and the only thing that actually empties a milium. The roof is nicked with a sterile blade or needle and light pressure lifts the keratin pearl out whole, in about ten seconds a bump. The one that is removed does not come back in that spot. Done once, properly, it heals in a few days; repeated digging at the same place is what leaves marks.
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Electrodesiccation and Curettage
A fine heated needle used to destroy the sac, usually kept for milia that are numerous, very small, or sitting somewhere awkward for a blade. It works. It is also more likely than a simple nick to leave a small mark, so it is not the first choice for one or two bumps on an eyelid.
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Cryotherapy (Liquid Nitrogen)
Freezing is sometimes offered for milia. It is less precise than extraction, more uncomfortable, and on deeper skin tones it carries a real risk of leaving a pale or dark mark where the bump was. There is little reason to choose it over opening the sac and lifting the contents out.
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Tretinoin
The prescription-strength version of the same idea as adapalene, used at night when there are many milia or they keep coming back. Over two to three months it reduces how many new ones form. It does not clear the existing bumps, and it is used carefully near the eyes. Ask your doctor about it if you are pregnant or trying to become pregnant.
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What clears it
Closed comedone
Retinoids and exfoliating acids
A retinoid such as adapalene or tretinoin is the main treatment. Salicylic acid helps too, because it dissolves oil inside the pore. Give either eight to twelve weeks.
Milia
A pinpoint nick by a clinician
A sterile needle opens the surface and the keratin lifts out. It takes seconds per bump. A retinoid can clear a crop slowly instead, over weeks to months.
When it needs a doctor
Closed comedone
If it is widespread or not shifting
Persistent bumpy skin after three months of a retinoid is worth a prescription review. Comedones are harmless, so treatment is about how much they bother you.
Milia
If they appear in a patch on damaged skin
Milia are harmless. Worth checking if a crop appears on skin that blistered or scarred, or if you cannot tell what you are looking at.
What actually causes each one
Milia
Milia come from skin that is not shedding cleanly. In newborns they are simply immature glands, and they clear by themselves. In adults they follow damage to the surface: sunburn, blistering, a healed rash, or long-term use of a strong steroid cream on thin skin.
Related topic illustrations
Milia
Acne
The closed comedone — a whitehead — is what milia get mistaken for most. Both are small pale bumps in the same places. A whitehead is a blocked pore, so it has an opening you can find, it holds oil and skin cells rather than a firm pearl, it can turn red and sore, and it comes and goes over days. A milium is sealed, has no opening, sits unchanged for months and never becomes inflamed. That is also why acne treatments do very little for milia.
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Molluscum Contagiosum
Both are small, firm, dome-shaped and pale. Molluscum bumps are usually a little larger, most have a tiny dimple in the middle, they turn up in clusters that spread over weeks, and they are common in children and in skin folds. Milia do not spread, do not dimple and cannot be passed on. Molluscum is a virus and clears on its own eventually; a milium sits still until someone removes it.
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Basal Cell Carcinoma
Worth knowing about, because an early basal cell skin cancer can look like a small pearly bump on the face, which is exactly what a milium looks like. The difference is behavior. A basal cell grows slowly month by month, often has fine blood vessels visible over its surface, and may crust, bleed or refuse to heal. A milium is one to two millimetres, stays that size and never bleeds. A single bump that is growing or bleeding should be looked at.
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Common questions
Questions Patients Ask
Will a retinoid clear milia?
Slowly and only partly. It thins the surface layer so trapped keratin can work its way out, which takes weeks to months. It is the right home option, but it is not a fast one.
Why do my forehead bumps come back every few weeks?
That is the normal behaviour of closed comedones. They track your oil, your hormones and your products. Milia would not behave that way, because they stay put.
Can an esthetician remove either one?
Many can extract closed comedones safely. Milia need the surface opened with a sterile needle, and rules on who may do that differ by state, so check before you book.
Is a bumpy forehead with no redness still acne?
Yes. Comedonal acne is acne without much inflammation. It responds to the same retinoid treatment as red, sore acne, just without the antibiotic part.
Could my white bumps be something else?
Sebaceous hyperplasia and syringomas both cause small persistent bumps on the face. Sebaceous hyperplasia is yellow with a dent in the middle; syringomas are skin-coloured and cluster under the eyes.