Recently, the clinic received a child with polydactyly (six fingers) successfully operated, the operation was very successful, the child looked at his hand shape finally returned to normal, the patient, Kiki revealed a long-lost smile. It turns out that since Kiki was born, an extra finger (six fingers) was discovered. Because of the difficult conditions in the family, more siblings, and it does not affect the normal function of the fingers, therefore, the parents did not take it seriously, but because of the deformity of the fingers, Kiki had a strong sense of inferiority, and finally at the age of twelve, came to the clinic for finger removal surgery. The specialist introduced, six fingers, is a more common polydactyly, mostly for the thumb outside of a small finger, or six fingers as the people call it. It is more common in patients with polydactyly in hand and foot surgery. Polydactyly not only hinders the functional activities of the hand and affects the appearance, but also has a great psychological shadow on children, so surgery should be performed in a timely manner under the guidance of a doctor. In the past, there was a prejudice against polydactyly (six fingers), which was considered unlucky. With the development of medicine, people gradually realize that six fingers is one of the common finger deformities, most of which are related to genetics. Experts point out that polydactyly not only hinders the functional activities of the hand and affects the appearance, but also has a great impact on the psychology of the patient, so if a child is found to have polydactyly, it should be treated in a timely manner under the guidance of a doctor.