They are almost always a result of a traumatic, sudden blow to the head or spinal cord area. (dogstogo.net)
Diapers designed for that freshly arrived baby leave the umbilical cord area exposed to promote healing. (wetheparents.org)
Their diapers for newborns have a notch so the umbilical cord area gets lots of healing time, and they can distribute wetness evenly for up to twelve hours. (wetheparents.org)