In fact, from the point of view of the difficulty of the operation alone, the age of the child has little influence on the hand surgeon, and we can perform delicate operations under the operating microscope even with small fingers. So this is not a decisive factor in the timing of surgery. So what are the factors that really influence our choice of surgery timing? I think the first factor is anesthesia. The younger the child is, the higher the requirements for anesthesia. Of course, nowadays, the anesthesia technology is so advanced that it is technically possible to perform anesthesia for infants. However, we do not advocate operating on all babies at this young age because of the anesthetic risk. The purpose of heart surgery is to save lives and it is worth the risk, while hand and foot deformities do not have such a serious risk, so it is not worth it. That’s why we usually require the child to be at least 6 months old. So is it true that the older the child the better? Obviously not. First of all, from a medical point of view, children start to use their hands consciously around 6-8 months and gradually improve and develop all the functions of the hands, which not only help the development of the hands, but also have an important role in the development of intelligence. Therefore, it is significant to correct the deformity at this stage and let the child have a relatively normal hand. Secondly, from the child’s psychological point of view, the child will slowly become aware of the differences between him/herself and other children during the growth process, which will lead to a certain tendency to avoid communication, which is not conducive to healthy psychological development. It is for these reasons that we generally set the time between six months and two years of age when most congenital deformities of the hands and feet are orthopedically performed. Finally, there is a special case of megalodontia. Since some megalodontia progresses very rapidly, especially within the first few months of life, we advocate timely intervention in such cases, preferably at around 3 months of age for the first surgery to stop the overgrowth at the beginning, which is much better.