What does the start of neurofibromatosis look like?
Matthew Cannon
Updated on January 23, 2026
Most newborns with neurofibromatosis type 1 have no symptoms, but some have curved lower leg bones. By their first birthday, most children with NF1 have several skin spots, called café-au-lait ("coffee with milk") spots because of their color. Café-au-lait spots are: darker than surrounding skin.