The more traditional surgical option is thumb thumbing, which means the thumb is removed and the index finger is moved to the thumb position and used as the thumb. Nowadays, more and more parents prefer the surgical option of preserving five fingers, metatarsal reconstruction or hemimelia reconstruction, and I personally prefer the latter. Metatarsal reconstruction is the reconstruction of the first metacarpal bone from the foot, although the five fingers can be preserved, but there is some damage to the child’s foot, after all, it is a weight-bearing part, more or less, there will be some impact, the child can not bear weight for three months after surgery, and parental care is more cumbersome. The hemi-metacarpal bone graft reconstruction technique is to reconstruct the first metacarpal bone from the second metacarpal bone of the affected hand, which is operated on the hand only and cannot hurt other parts of the hand. After the surgery, the child’s hand can write, twist bottle caps, squeeze small grains of rice, and can also be strong enough to grasp large objects, and there is a great improvement in appearance.