Polydactyly does not necessarily require surgery. Because of polydactyly, there are some people who have an extra finger, this finger has a function, can also grasp things, also have feeling, can also hold things, so there may be more than no impact on the function, may be from the appearance of the impact, need to be based on their own psychological acceptance level. For example, if the child can accept it, if he or she feels that the function is good and it does not affect the appearance, and if he or she can accept it psychologically, and if there is no pain, the surgery may not be necessary. Some patients with an extra finger may have pain in some areas and may need surgery. Therefore, surgery is not necessary for every extra finger.