A recent study showed 97-point-one percent of South Korean babies are born with Mongolian spots. 
 
A team of doctors led by Professor Shin Son-moon of Cheil General Hospital and Women's Healthcare Center at Catholic Kwandong University College of Medicine made the assessment after observing one-thousand-964 South Korean newborns between last year and this year.
 
The team said Monday that 97-point-three percent of Mongolian spots were found on the newborns’ buttocks and body and around one percent on the babies’ arms and legs.
 
Mongolian spots are dark spots that look like bruises found on newborns’ buttocks, back or hands. The spots mostly disappear before the age of seven.
 
The team’s discovery is drawing attention as the rate of Mongolian spots found in South Korean babies is far higher than that of Japanese, Chinese, Indian-American and Western babies.
 
Professor Shin said genetic factors are likely the reason so many Korean babies have Mongolian spots.