Cranium is a protective role for the brain, due to certain factors on the cranium of the interference, the loss of soft tissue protection of the brain, the brain is easily subject to external aggression, the patient’s health and life will pose a threat, this time we have to repair the defective parts of the brain again for protection. So the skull is very important. Cranial defects, if not repaired to bring harm is very much, cranial defects after a long time can not be repaired, the patient may appear dizziness, headache, localized tenderness, irritability, restlessness and other manifestations. There are also some patients who appear to be afraid of the sun, afraid of vibration and even afraid of noisy sounds, often with poor self-control, concentration is not easy and memory loss. Or because of the atmospheric pressure directly through the defect area on the brain tissue, over time is bound to lead to local brain atrophy, aggravate the symptoms of brain damage. Therefore, after the cranial defect, their own conditions allow, as soon as possible to do skull repair surgery, do skull repair some patients also have such questions, skull repair surgery can be redone? Cranial bone repair for the first time the rejection reaction, or infection caused by the failure of the operation or the patient himself suffers from a disease that requires craniotomy treatment, the patient is able to repeat the cranial bone repair surgery. If the patient suffers from brain disease, when doing cranial repair, it is recommended to use PEEK material, which is the most ideal material for cranial repair at present, and PEEK material is also the only material that can be reused for cranial repair, which can be reused again and again after high-temperature disinfection and cleaning.