Is Erythema Toxicum Normal?

Erythema toxicum may appear in approximately one half of all normal newborn infants. The condition may appear in the first few hours of life, or it can appear after the first day. The condition can last for several days. Although erythema toxicum is harmless, it can be of great concern to the new parent.

How common is erythema Toxicum?

How common is erythema toxicum neonatorum? ETN is very common. Up to 4 or 5 in every 10 babies develop it. It seems to be more common in babies born at full term (between 37 and 40 weeks of gestation) compared with premature babies.

What causes erythema Toxicum?

The cause of erythema toxicum neonatorum is unknown. Multiple theories have been proposed to explain this common disorder. Neonates have an increased number of hair follicles compared with adults, and the occurrence of erythema toxicum neonatorum in non–hair-bearing areas such as palms and soles is rare.