How many times a child has to have surgery for congenital thumb dysplasia, we have to look at the bones. If the metacarpal bone is intact, even if it is a little bit smaller, but the length is OK, then we can do it all at once to strengthen the carpometacarpophalangeal joint and the metacarpophalangeal joint, so that the child can right the palm and extend the fingers. If the bone is not long enough, we have to lengthen and replenish the bone first, and then go to the later functional reconstruction. For thumb dysplasia, the most important problem we need to solve is the opposite palm and finger extension, because without these two functions, the child’s thumb is flexed, it is inconvenient to do a lot of things, and can’t grasp things, it must be opened to grasp things, which is very critical. In addition, we have to make the joints very stable, because if the joints are not stable, the child can’t hold things well, only when the joints are stable, the child can hold things, such as holding pens, holding spoons, holding toys and so on, all of these can be done. So it is very important for the stability of the palm, finger extension and joints. From our point of view, these are the first problems to be solved, and after these basic problems are solved, then we can go on to solve other problems. Of course, it would be best if they could be addressed at the same time.