Cranial defects are really common nowadays, and it is important to know that the skull is responsible for protecting the brain, and once the skull defect occurs, various problems will follow. For example, the patient’s body functions will not be able to function normally, and also cause a series of cranial defect syndrome, which can be said to be dangerous. Therefore, what you need to do after skull defect is to go to the hospital for skull repair surgery as soon as possible. On the issue of skull repair surgery, there are also some patients who are very unconcerned and feel that there is no need to do it, and as a result, they delay the surgery and realize the importance of doing skull repair surgery only after one and a half years. Will skull repair surgery after one and a half years help recovery? Cranial defects have many effects, and if the condition has been there for more than a year then it should be taken more seriously. It is important to remind you that timing is really important to get a better result of cranial bone repair surgery. Generally speaking, the skull defect should be repaired within 3 months, the longer it is delayed the more problems the patient faces, which may result in some serious consequences. Timely cranial repair can help a lot in later recovery. Of course, the choice of materials in the skull repair process is also very critical, now clinically more ideal for skull repair surgery to do polyether ether ketone PEEK material. This is a polymer material, its properties are very close to the autologous cranial bone, the repair effect is good, good protection performance, by the majority of patients and neurosurgeons favored. Our team is currently using this PEEK material for cranial repair surgery. While using PEEK material for surgery, the team also continues to improve and upgrade the technology, optimize the design of the material, and incorporate the concept of aesthetic plastic surgery, thus carrying out comprehensive PEEK cranioplasty, resulting in more natural and beautiful postoperative results.