Will hair grow back after skull repair surgery? I believe this is a question that many patients will worry to. Especially for girls, their hair is a very precious thing. I’m sure I don’t want to wear a wig in the future. Therefore, this is also a problem that many patients are very worried about. Cranial repair surgery will only damage a small part of the hair follicle at the incision, so the impact on the patient’s hair is minimal. It is negligible. The choice of the material used for the skull repair is equally important in determining the aesthetics and compatibility of the patient after the surgery. The most widely known cranial repair materials at this stage are titanium mesh and peek (polyetheretherketone) repair materials. Both are also the most widely used repair materials in clinical practice. Before PEEK entered the ranks of cranial bone repair, titanium mesh material has been very popular because it is relatively superior to the previous materials such as autologous bone, glass and bone cement. For example, it is non-corrosive and strong. It can be forged and the cosmetic effect is better compared to bone cement and so on. These factors have made titanium mesh a material for cranial bone repair. However, in clinical practice, people have gradually discovered the possible risks of titanium mesh repair. First of all, the problem of its metal material causes it to have higher thermal conductivity and poor insulation, which may cause sensitivity to hot and cold reactions, and also the surgery of cranial bone repair with titanium mesh is a kind of overlay surgery, which is more irritating to the scalp. It is also less histocompatible and less resistant to compression, so it results in it not being strong enough and easily deformed by force. It also has the presence of metallic artifacts,, which may interfere with medical examinations, such as CT resonance, causing diagnostic interference. Polyetheretherketone material is the perfect solution to these problems. It is the most advanced material for the treatment of skull defects. It is also one of the most suitable materials to be selected for skull repair surgery. Polyetheretherketone is a polymer material comparable to the human body’s own cranial bone. It is more biocompatible and. It is strong but very elastic and tough, more resistant to impact and better protection. Unlike titanium mesh surgery, skull repair surgery with polyetheretheretherketone is an embedded surgery and more comfortable. Moreover, compared with titanium mesh material polyetheretherketone material basically does not conduct heat and has strong insulation properties. It avoids the sensitivity to hot and cold reactions caused by cranial repair surgery with titanium mesh. There is also no postoperative infection and no rejection. Rays can be transmitted without forming artifacts. A more important point is that polyetheretherketone is a material that can be plasticized in three dimensions and can be customized for three-dimensional reconstruction according to the different needs of the patient. Based on the patient’s brain CT data, the design is made according to the 3D printing technology to produce a cranial bone that matches the bone window perfectly after the repair is basically the same as the own cranial bone. However, there are not many hospitals that do skull repair by peek at present. It also requires a high level of skill and professionalism from the doctors who do peek skull repair in China. Therefore, if there are patients who need this treatment, it is recommended to choose a more authoritative hospital.