In the past two days, many parents have been asking about polydactyly, so we are using a polydactyly baby from our previous clinic to answer questions about polydactyly for parents. This baby has polydactyly in his right hand, and both thumbs are about the same size, and the strength is fine. If I remember correctly, the baby was just over a month old, not yet old enough for surgery, and the parents came to the clinic and asked what intervention was needed. For this type of polydactyly, parents only need to do one thing before surgery: if the baby is not allergic to tape, parents can put a little cotton between the baby’s two thumbs after the baby falls asleep at night, in order to keep the outer thumb from squeezing the flesh of the inner thumb. Because this type of polydactyly is usually reserved for the medial thumb, if you pad it with cotton, the medial thumb will grow a little fuller and will look better after surgery. In addition, the parents of this baby also raised a question that many parents of polydactyly babies ask, that is, whether the thumb after surgery is similar to the normal side of the thumb. In fact, there are differences between the operated thumb and the normal thumb, and the differences are mainly in three aspects. Other than that, the baby can write, play piano and other things.