15 ‘Rare’ Events That Happen All the Time

Being Born With an Extra Finger or Toe

Most people have both five fingers on each hand and five toes on each foot. But being born polydactyly, as it’s technically called, isn’t all that rare. In the United States, 1 out of every 500 to 1,000 babies has an extra finger or toe, according to the Boston Children’s Hospital.