Milia myths:
six common claims about milia seeds, checked against the evidence

Myth 1: "Milia can be popped like whiteheads"

Milia cannot be popped, because they have no opening to the surface. A milium is a small cyst of compacted keratin, the protein of the outer skin, sitting just under the epidermis and sealed over. A 2008 review that classified the forms of milia described them as this kind of keratin-filled cyst, whether they arise on their own or after injury. A whitehead is different: it is a follicle plugged with keratin and oil, and pressure can express it.

Squeezing a milium therefore releases nothing and bruises the skin around it, which matters most on the eyelid, where the skin is thinnest. In Fitzpatrick III to V skin, common in Singapore, a needle or extractor used at home can leave a dark mark or a small pitted scar that outlasts the milium. The difference between milia, whiteheads and syringoma is set out on milia: the white bumps that never pop, and whiteheads on closed comedones.

Myth 2: "Milia around the eyes mean high cholesterol"

Milia are not a sign of high cholesterol; that association belongs to xanthelasma. Xanthelasma palpebrarum are flat or slightly raised yellow plaques on the eyelids, made of fat-laden cells. A 2020 systematic review and meta-analysis of 15 case-control studies with 854 patients found that people with xanthelasma had higher total cholesterol and LDL cholesterol and a higher measured risk of atherosclerosis than controls, and recommended monitoring them for cardiovascular disease.

Milia are white, pearly and firm, about one to two millimetres across, and contain keratin, not fat. They carry no metabolic meaning. The two are confused because both sit around the eyes, which is why a yellow, flat eyelid lesion should be examined rather than assumed to be milia. Xanthelasma is described on xanthelasma; if you have it, a cholesterol check with your doctor is reasonable.

“A milium is a sealed pearl of keratin. Squeezing it only bruises the skin around it; it needs a sterile opening, not more pressure.”

Dr Sin YongOn why milia cannot be popped

Myth 3: "Milia are a baby thing and always disappear on their own"

Milia are common in newborns, where they clear by themselves, but they occur at all ages, and in adults they can persist. A 2012 survey of 1,000 consecutive newborns in Spain found milia commonly, mainly on the cheeks, chin and forehead. The 2008 classification review divides milia into primary milia, which arise on their own and are seen at any age including in newborns, and secondary milia, which form where skin has healed after blistering, burns, abrasion or procedures.

In adults, a milium is sealed with no exit, so its contents have no route out, which is why some persist. That does not make them harmful; leaving them alone is a reasonable choice. See a doctor for milia close to the lash line, many appearing at once, a cluster on a raised patch, or milia in a child beyond the newborn period. The types are explained in the milia seeds removal guide.

Myth 4: "Rich eye creams cause milia"

The evidence that rich eye creams cause milia on ordinary skin is limited; the clearer evidence concerns heavy occlusive products on freshly resurfaced skin. In a 2014 study of 100 patients after CO2 laser resurfacing, the group whose aftercare began with a petrolatum-based ointment developed milia more often than the group managed with a non-petrolatum emulsion, and the authors attributed the difference to the petrolatum, although the two groups also had different laser treatments. That was healing, wounded skin, not an eye cream on intact skin.

On intact skin around the eyes, swapping a rich, occlusive cream for a lighter texture is a sensible, low-cost step for someone who forms milia easily, and it is what is suggested here, but it is a precaution rather than a proven cause. Some doctors also suggest a gentle topical retinoid for people who form many milia; the evidence is limited, and it does not remove milia that are already there.

Myth 5: "Laser and freezing can't cause milia"

Laser resurfacing and freezing can both cause milia, which are then called secondary milia. In a 1998 series of 500 patients after fully ablative CO2 laser resurfacing, milia formation was among the effects seen in roughly a tenth to a seventh of patients, alongside acne flares and dermatitis. A 2014 case report described milia en plaque, a red patch studded with many milia, at a site treated with liquid nitrogen freezing once it had healed.

This is not a reason to avoid those treatments when they are indicated; it is a reason to know what the small white bumps are if they appear during healing, and not to squeeze them. They are reviewed at the clinic, and most are simple to treat once the skin has settled. Aftercare after resurfacing is set out on CO2 laser aftercare.

Myth 6: "Milia always need laser to remove"

Most milia do not need laser. The usual first step, once a milium has been confirmed and told apart from a whitehead, syringoma or xanthelasma, is physician extraction through a sterile micro-opening, called de-roofing. Fine-tip cautery or laser may assist where milia are many, recurrent or set in a plaque.

The laser evidence is at the level of small case series. A 2010 report described four patients with different variants of milia, including milia en plaque, eruptive milia and milia after trauma, treated with CO2 laser vaporisation, and suggested it as an option for multiple lesions or milia en plaque. That is useful for the difficult cases and says little about a single milium under the eye. Recurrent milia and syringoma can be treated here with the precision of a fractional CO2 laser where extraction is not enough. What decides the plan and the fee is on milia removal cost.