Synchronous Neonatal Telogen Effluvium in White and Black

The document discussed synchronous neonatal telogen effluvium, a physiological phenomenon observed in newborns where hair falls and grows in synchronous bands, starting from the frontal region and moving towards the nape. This results in a band of hair rarefaction with clear-cut borders in the occipital region during the first few months of life. This condition was often misinterpreted as being caused by the pressure of the head on a pillow, despite no correlation with the newborn's sleeping position. In individuals with black hair, the area of hair rarefaction was less defined due to the hair's structure.