Milia are tiny cysts that occur for unknown reasons in infants. Milia are tiny (about an 1/8 to 1/4 inch in diameter) cysts. Milia are smooth, white cysts often found on the face. This image displays milia, the small, white bumps at the center of the forehead. Though they are white in color, milia are filled with skin scale (keratin), not pus.
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Milia  A parent's guide for infants and babies

Picture of Milia: Milia are tiny cysts that occur for unknown reasons in infants. Divider line
Milia are tiny cysts that occur for unknown reasons in infants.
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Who's At Risk
Milia can occur in all populations and ages. Primary milia are so common in newborns (occurring in up to 50%) that they are considered normal. Secondary milia are less common in infants but may appear if there is any injury to the skin.
Last Modified: 22 Dec 2008