This is called webbed toes, which is hereditary and will not have any influence on health.

Just toes stick together, just like ducks, kangaroos and frogs.

The probability that humans have webbed toes is 1/2000 ~ 1/2500.

English is webbed toes, duck toe.

Webbed toes of mankind can be shaped by surgery.

Molly, the heroine of the movie I don't deserve her, is a blonde with perfect figure and face (10). Her only fault is webbed toes!