What is erythema on the back of the newborn's head

Erythema appears on the back of the newborn's head. If it is accompanied by erythema at birth, it may be the manifestation of hemangioma, but most of the erythema appears after a period of time after birth. This erythema may be related to the long-term lying sleep of the newborn and the long-term pressure on the back of the head.