Cranial defect is a kind of disorder often encountered in neurosurgery clinical work. There are a lot of risk factors in social life, which lead to various accidents, such as traffic accidents, production safety accidents, falling objects, etc., which may lead to craniocerebral injuries, and even end up causing cranial bone defects. In addition, the cranium itself, the disease damage, own craniocerebral disease and craniotomy surgery can not be instantly returned to the bone flap will also be left with skull defects. Therefore, cranial defects have become a common disease. Harms of cranial defects and damage to nerve function Cranial defects are very harmful. First of all, it is the impact on the appearance of the skull, the lack of skull support, the head may be collapsed or puffed out, very much affecting the aesthetics; secondly, it is a threat to the safety, the lack of hard skull protection, if you are bumped or hit by the outside world, you may be injured in the brain tissue, or even life-threatening, very dangerous; in addition to the damage to the cerebral nervous system, the lack of some of the skull, the closure of the integrity of the cranial cavity has been destroyed, the intracranial environment, the intracranial environment, and the damage to the neurological function, the lack of some skull, the closure integrity of the cranial cavity has been damaged. The intracranial environment, intracranial pressure instability, cerebrospinal fluid circulation, cerebral blood circulation and other possible obstacles may affect the normal operation of the cerebral nerve function, resulting in a series of cranial defect syndrome, cranial defect syndrome specific manifestations may include dizziness, headache, limb numbness, weakness, adverse activities, emotional instability, irritability, and some patients may be manifested as impaired vision, impaired hearing, loss of smell, and so on. It is the trauma to the patient’s spirit and mind, the appearance of the unattractive and various clinical symptoms will cause a great blow to the patient’s psychology and damage, some patients may produce low self-esteem, autism, and even depression. Therefore, it is recommended that cranial bone repair should be carried out in time after the occurrence of cranial bone defect. Are the nerves restored after cranial repair So are the nerves restored after cranial repair? Cranial repair surgery is helpful in restoring brain nerve function. Cranial repair is a routine surgical procedure to repair the defective area of the skull using certain materials for various reasons. After cranial bone repair surgery, the integrity of the skull can be restored, the closure of the cranial cavity can be restored, the stability of the intracranial environment can be restored, the circulation of cerebrospinal fluid in the skull and the blood circulation in the brain can be restored to normal, the function of the brain nerves can be restored to normal, and the various cranial bone defect syndromes can be relieved and improved. At the same time, cranial bone repair also strengthens the safety protection of the head and brain, restores the beauty of the appearance, and is a great comfort to the patient’s soul. Therefore, timely cranial bone repair is very necessary. PEEK Cranial Repair Plastic Surgery Cranial repair is a routine operation in neurosurgery, however, it is not simple, and it is not easy to do it well. It requires the selection of cranial repair materials with excellent performance, and it also requires the operator to have a high level of operating skills. At present, the new polyether ether ketone PEEK is widely used as the cranial bone repair material, which has excellent performance, and its properties are comparable to those of autologous skull, with a high degree of comfort, strong protection, and fewer complications, and ideal clinical results. The surgical team also continuously improves and upgrades the technology and optimizes the design of the material, and introduces the concept of cosmetic plastic surgery, so as to comprehensively carry out PEEK cranial bone repair and plastic surgery, which can achieve the organic unity of structural restoration, functional perfection, and aesthetically pleasing appearance.