The skull is located at the top of the human skeletal system, above the spine, and consists of 23 bones of different shapes and sizes, which are delicately joined together to form the complete closed cranial cavity that protects and supports the brain and the head and facial organs. Therefore, the importance of the skull to the human body cannot be overstated. However, risks and accidents exist everywhere, the skull can be damaged by external force majeure, and cranial defects are also a common disorder in neurosurgery. For example, traffic accidents, production safety accidents, falling objects, fights, cranial surgeries, etc. may damage the skull and cause cranial defects. This requires timely skull repair surgery. However, some patients may still have a fluke mentality. If a skull defect occurs and the diameter of the defect is more than 3CM, it is recommended to undergo skull repair in time. If the skull repair surgery is not performed in time, one of them will have a great impact on the aesthetic appearance, and the lack of a part of the skull will lead to rapid changes in the intracranial environment, unstable intracranial pressure, and the cerebrospinal fluid circulation and cerebral blood circulation in the skull may be affected, and the neurological function in the skull may be impaired, resulting in a series of skull defect syndrome, which will affect the physical and mental health of the whole person. Another important point is safety, if not repaired in time, if the head is injured again, it may directly harm the brain tissue, and in serious cases, it may even directly endanger the life, which is very dangerous. Therefore, it is very necessary to do skull repair surgery in time.