In current life some people suffer from cranial defects due to various reasons. Cranial defects not only affect the appearance, but also affect the health. Therefore, patients should undergo cranial repair surgery as early as possible. Whether the craniotomy is due to disease or accident, the common point is that it can only be accomplished by opening a window in the skull, so it will be easy to leave behind the problem of cranial defects. Cranial defects can leave the tissues inside the skull without the protection of the skull bone, which is quite dangerous. Do I have to have cranial repair surgery after craniotomy? This is a question to be recognized, craniotomy process if there is a de-bone flap decompression surgery, which will inevitably cause defects in the skull, in which case it is necessary to carry out cranial bone repair surgery, and should be carried out 3 months after the craniotomy surgery, so as to recover better. The skull itself plays a protective role for human brain tissue, if the skull is defective due to craniotomy, the fragile intracranial tissues may be subjected to external aggression all the time, which is very dangerous. Therefore, the importance of repairing the skull after craniotomy should not be overlooked. It is crucial to follow the advice of experts and undergo cranial repair surgery at the right time. The PEEK material that we use for skull repair surgery is quite superior, and it has a more natural contouring effect than many previous materials, which has been recognized and praised by many patients. And PEEK material can be three-dimensional remodeling production, can be highly restored to the human skull, can be said to be a real recovery, is the current medical cranial bone repair material worth choosing.