The exact prevalence of<unk>  is unknown, and studies estimate prevalence as low as 3.7 percent to as high as 72 percent. It is one of the most commonly diagnosed rashes in healthy babies. It is more common among infants born at higher gestational age and is rare among premature infants.<unk>  is more likely to develop in infants delivered vaginally. Higher birth weight is an additional risk factor. There may be a slightly increased risk in males, but this association is unclear. There are no known associations with race or ethnicity.
Erythema toxicum neonatorum
Papular eruption of blacks
Bradyphrenia
Prurigo gestationis
Erythema dyschromicum perstans
Noma neonatorum
Arbor vitae 
Cutis marmorata telangiectatica congenita