Milia are white or yellowish microcysts that appear on the surface of the skin. These small cysts are made up of lamellae of keratin , a protein present in the skin appendages. If they are generally located around dark circles and cheeks, they can also appear on any part of the face or body ( neck and hands, but also the groin and the genital area). Their diameter usually varies from 1 to 2 millimeters.
The consistency of a milia is hard to the touch, reminiscent of a lump of sand under the skin . No redness or inflammation is found, which differentiates milia from pimples and spots.
The presence of milia in a cluster on the face is a form very often encountered in consultation. But it is quite possible to have only one at a time.
Milia spots can affect all skin types (dry or oily).