Picture of White Bumps (Milia)
The small white bumps commonly seen on a newborn's face are called milia. Milia form when dead skin cells become trapped in a small pocket on the surface of the skin. Similar white bumps may sometimes appear in a newborn's mouth. These are called Epstein's pearls, and they may look like teeth coming through the gums. Both milia and Epstein's pearls resolve on their own after a few weeks. Treatments are not necessary for these conditions.
Milia can sometimes appear in adults. Rough clothing or bedding may cause these white bumps to redden. Milia on adults can be removed to improve the appearance of the skin.
Text Reference: American Family Physician, vol. 77, 2008: "Newborn Skin: Part 1: Common Rashes"