After the birth of newborns, the spine has not yet fully formed the physiological curvature, the skull is not fully developed, do not need the help of pillows. Newborns in the clinic refers to babies born within 28 days, because its spine has not yet formed the physiological curvature, so do not use pillows too early; at the same time the newborn’s head is large, lying flat and sideways will have a certain degree of support, will not cause excessive muscle tension. If the pillow is used too early, it may lead to bending of the skull and neck, which may affect the growth of bones; and the neck of newborns is short, so they may feel uncomfortable when their head is elevated, and it may also block the airway, which may affect their respiration. Usually after 4 months of age, infants gradually appear cervical spine physiological curvature, at this time, you can choose for their 1-2cm high pillow for use. In addition, most of the infants in the neonatal period are prone to spitting up, parents can at the same time their head and shoulders cushion, the right side of the lying position, can prevent spitting up, so as to avoid asphyxia from vomiting.