Thumb hypoplasia is a problem in hand surgery and plastic surgery. there are few particularly effective means of preserving the thumb in thumb hypoplasia type 3B and above, and thumbification surgery is generally recommended, which means that the child will face the dilemma of having only 4 fingers. Faced with a non-functional but nail-bearing thumb, it is a shame to discard it and useless to keep it. Our hand surgery department at the Ninth Hospital has created a brand new procedure for thumb hypoplasia above type 3B, and since it has not yet been published, I can only share some fragments with you: The surgery came from a business trip to Europe, and while meditating in Florence, I suddenly had a flash of light and made the surgical design in front of a magnificent painting. The surgery was complex, lacking the best of plastic surgery tissue transplantation and hand surgery functional reconstruction, creating a new procedure for the correction of congenital deformities of the hand and upper limbs. In fact, all this comes from the persistent pursuit of parents of children with hand deformities, and the courage to never leave their children for the correction of deformities inspires us to make more efforts!