Brain hemorrhage occurs very suddenly and its danger is very high. Once a brain hemorrhage needs to be treated promptly, many times surgery is required. Often, in many cerebral hemorrhage surgeries, debridement and decompression are required, leaving a skull defect as a problem. Many people in the clinic do not take the skull defect seriously, they do not realize the seriousness of the skull defect and do not repair it in time, and as a result, they put themselves in greater danger. Is cranial repair for brain hemorrhage mandatory? Generally yes, it is worth to pay attention to the skull defect whether it is caused by brain hemorrhage surgery or other problems. Because the role of the skull itself is to protect and support the brain, to prevent the intracranial tissues from being attacked by the outside world, once the skull is defective, the intracranial tissues are exposed and easily damaged, and the consequences are very serious. Therefore, it is very critical to do skull repair surgery in time. Moreover, the use of materials in the skull repair surgery should be careful. Many hospitals use titanium mesh material for skull repair surgery, which is cheap and not difficult to operate. However, after a lot of clinical practice verification, titanium mesh materials may sometimes still have certain problems and the post-operative recovery is not ideal. In order to allow patients to have a better treatment, our team has adopted a safer and more advanced polyetheretherketone PEEK material, which makes up for the shortcomings of titanium mesh material very well. Moreover, our team has continued to upgrade the technology and optimize the design of the material, and introduced the concept of aesthetic plastic surgery to successfully carry out PEEK cranioplasty for skull repair, which has been widely praised.