Definitions for "Mongolian spot"
a brown to blue-black spot on the lower back and buttocks at birth, caused by a concentration of pigment-producing cells; usually disappears by the age of 3 or 4 years
A large birth mark which looks light blue, usually on the lower body. It disappears or becomes less noticeable as the baby grows. They are more common in Asian and dark-skinned babies.
A large birth mark that looks light blue, usually on the lower body. Disappears or becomes less noticeable as baby grows. More common in Asian and African American babies.