The large number of automobiles and advanced transportation have provided a lot of convenience to our lives. But also as a result, there has been an increase in various car accidents. Many people suffer cranial damage due to an accident, which is very dangerous. Because the skull is the umbrella of brain tissue, once damaged brain tissue is bound to be vulnerable to external attack. Thus, what is needed when one is unfortunate enough to suffer from a skull defect is to go for a skull repair surgery to restore the skull to its original state so that the brain tissue can be protected from further damage. Is there a risk of death and after-effects of cranial repair surgery? Many patients who do not know much about cranial repair surgery will question this question, in fact, do not worry, cranial repair surgery is a routine surgery, but also a relatively old surgery, from ancient times, the development has been very mature, the risk of surgery is very low, will not pose a threat to life, and generally there will be no aftereffects occur. However, if the hospital chosen by the patient is not formal enough, and the repair material chosen is not good, the operation may still bring some effects. Like the earliest use of plexiglass, bone cement and other materials, all the performance is not good enough, the postoperative effect is not ideal, not to mention that it will also have some impact, there will be a rejection reaction, so it is gradually eliminated. There is also a lot of hospitals are now using titanium mesh material, although relatively advanced, but the postoperative infection, there may also be titanium mesh exposed phenomenon, which needs to be removed in a timely manner, the operation is equivalent to a waste of time. Then, in order to improve the safety of cranial repair surgery and avoid the occurrence of some sequelae, it is recommended to choose safer materials, of course, also need to choose regular hospitals and experienced experts to carry out the surgery. Repair material is also very important, there is a new type of cranial bone repair material, that is, peek material, peek material’s stability and histocompatibility is very strong, will not lead to heat, strong and elastic, the effect of the postoperative period is very good, and will not have sequelae.