Newborn has tiny (1mm) sacral dimple in gluteal crease and what looks like a tiny stork bite in the center of his lower back. how likely is this occult spinal dysraphism? dr never mentioned anything.

Sacral dimple: although spina bifida and other congential spinal malformation issues have some association with the dimple and stork bite, the VAST majority of newborns with these have no congential spinal malformation issues. Watchful waiting is ok. Discuss at next well child visit with your provdier. Congratulations on your newborn. Hope this helps.

Excellent question: Most sacral dimples are benign, provided there is complete skin coverage. Dimples with a tiny hole at base could be sign of spinal dysraphism or tethered spinal cord & would need to be evaluated. lumbo-sacral ultrasound is excellent, non-invasive study to rule out cord tethering.