Craniosynostosis is becoming more and more common, either as a result of traumatic brain injury or as a result of brain diseases that require craniotomy, which can lead to craniosynostosis. Craniosynostosis occurs not only in adults, but also in some children. Does it matter if a child has a skull defect? Will children grow out of it? This is a question that many parents have. In reality, some parents always think that their children are in the stage of growth and development, and the growth of tissues will be very fast, even if part of the skull is missing, there is no need to do cranial repair surgery, thinking that the skull will grow on its own to heal. However, the reality is not so optimistic, when the child’s skull defect, only a very small number of children with a relatively small area of defects may grow back on their own. The majority of children with skull defects will not grow back on their own, and even if there is a small amount of bone growth in some children, it is very difficult to grow all the way back. As a result, parents need to realize that even if their child is growing, it is very difficult for the defective part of the skull to grow back on its own, so they should not take any chances, and most of them still need to undergo cranial repair surgery as soon as possible. In cranial bone repair surgery, the choice of material is very important, good material can achieve the repair effect will be better. At present, the new polyether ether ketone PEEK material is the ideal material for cranial bone repair surgery, its histocompatibility is very good, higher comfort, stronger protection, PEEK material is closer to the autologous cranial bone, and has become a new trend of cranial bone repair material, favored by neurosurgeons and patients with cranial defects. Currently, we are using PEEK material to carry out surgery. The team also continuously carries out technical innovation and material optimization design, and successfully applies the concept of cosmetic plastic surgery in the operation, and comprehensively carries out PEEK cranial bone repair and plastic surgery, which really restores the physiological structure of the skull, and the effect is natural and beautiful.