When you hold out your hands like this, many people see the problem with the left hand at first glance, but in fact, this child also has a little problem with the right thumb. The child’s right thumb belongs to type I thumb dysplasia, which is functional and can be palmarized, that is, the interphalangeal muscle is a little bit worse, we can not operate, just need to strengthen the exercise in general. The left thumb is a floating thumb, which is completely non-functional and requires surgery. The first stage of surgery is to give the thumb a better bony support, and the second stage is to rebuild the function of the thumb. As long as the post-operative functional exercise is done well, the child’s thumb shape and function are still relatively ideal.