Webbed toes (also known as syndactyly) is a rare condition seen in approximately one in 2,000 births. Those with this condition have two or more toes that are partially or fully joined by a flexible skin bridge. 

Syndactyly most commonly affects the second and third toes, but it can occur between any of the toes. 

The cause of webbed toes is generally unknown, although it may be congenital (inherited) or it may be associated with other conditions.  Surgery to separate the toes may be performed in select cases.