In 1992, the American academy of paediatrics has recommended that infants be placed on their backs to sleep, because prone sleeping has been correlated with sudden infant death syndrome. Following this article, medical paediatric community has documented an exponential increase in the diagnosis of posterior cranial deformities, which were considered as the consequence of unrelieved pressure onto the occiput during infant sleep. These last 15 years, management of posterior positional plagiocephaly has evolved but is still not standardized; it varies according to local specificities, and medical or parental preferences. Treatment of deformational plagiocephaly includes preventive counseling, repositioning adjustments and exercises, physiotherapy, osteopathy, treatment by dynamic cranial orthosis. On extremely rare occasions, corrective surgery is proposed. This article aims at reviewing the epidemiologic, diagnostic, and various therapeutic options of posterior positional plagiocephaly.