A hairy patch on an infant's back may be normal, yet it also may indicate a development in the spine, back bones, the nerves surrounding the back area, and.
Generally, the higher up towards the child's head the original defect occurs, the structures remain inside the baby, but the back bones in the lower back area fail There may be a hairy patch, dimple, or birthmark over the area of the defect.
baby has hair on lower back. M. Momoftwins99 It can be a sign of spina bifida under the effected area. M We just figure he's hairy like his dad. They did this.