The skull is a very important bone in our head, it is the barrier between our brain and the outside world, protecting the normal operation of the tissues in the brain. The skull may be defective for many reasons, such as accidental fall from a height, being hit by a heavy object that easily causes brain damage, or because of the lesion of the skull itself that requires debridement surgery, thus causing a defect in the skull. Generally speaking, if the defect area is more than 3cmX3cm, cranial bone repair is necessary. If you don’t go to the hospital for repair in time, it will be very harmful and can’t make the brain tissue get a good protection, which will affect the normal operation of human body, and it will make the patient have a great psychological barrier in the long run, because the collapse or expansion of the brain feels different from the normal people, generating inferiority complex, not confident, which will affect the patient’s life and work to a great extent. Therefore, patients with large skull defects should undergo skull repair surgery as soon as possible within three months after surgery. Some repair materials can also cause side effects after the repair, and some patients may have rejection reactions or other side effects after using them, so patients should also choose the repair hospital and materials carefully and conscientiously. At present, some hospitals are using a new type of material for skull repair, polyether ether ketone material, which is commonly known as peek material, is the ideal repair material recognized by many experts at present, and since its use, many skull repair patients have undergone repair surgery through peek material, and after long-term follow-up, it is found that the basic recovery after surgery is very good. If you have a cold, it is recommended to go for cranial bone repair surgery after getting well. We suggest patients with cranial defects to go to the hospital for cranial bone repair surgery as soon as possible and recover their health as soon as possible.