The skull defect is a grade 10 disability. It meets one of the craniofacial injuries. Therefore, a craniofacial injury is what constitutes a level of disability. Grade 10 disability means partial limitation of the ability to perform daily activities, work and study, and social interaction. Cranial repair is due to open surgical trauma or firearm penetration, partly due to surgical decompression, penetrating damage due to cranial lesions or removal of cranial lesions. The danger and latent harm of not repairing cranial defects for a long time is great and should be taken seriously by both adults and children. Do not take a chance not to repair. Therefore, it is important to pay attention to cranial defects. It is a good idea to have surgery to repair it in time. The harm of long-term cranial defect 1, because the atmospheric pressure directly through the defect area on the brain tissue, over time will inevitably lead to local brain atrophy and cystic change, aggravating the symptoms of brain wasting. 2, children with cranial defects with the development of brain tissue and become larger, affecting the normal brain development and appear low intelligence. 3.Adults may have slow reaction, memory loss or even focal neurological symptoms and signs. Epilepsy may be associated with meningeal-brain scar formation. Cranial defect syndrome People with defects may have fear of pulsation, bulging and collapse in the defective area, fear of sunlight, vibration and loud noises. There are often symptoms such as dizziness, headache, poor self-control, memory loss, or depression and low self-esteem. Local manifestation of skull defect 1, there will be local swelling and pain, and there will be pain at the edge of the defect as well. 2.The scalp will sink into the skull when the defect is in a high position. 3.When the defect is in low position, the scalp and part of the brain tissue will bulge outward, and the brain pulsation cannot be tolerated. Skull repair surgery The materials generally used for skull repair surgery are titanium mesh and polyether ether ketone material. Among them, polyetheretherketone is the most suitable material for skull repair and is one of the most commonly used materials in clinical practice. Cranial repair surgery is a kind of surgery that does not enter the brain tissue, and the surgery is done outside the cerebral cortex, especially outside the dura, or outside the scar after the first surgery, or outside the fascia. Therefore, skull repair surgery is generally safe, and the technology of surgery has been relatively mature, and the success rate of surgery is very high if you choose experienced physicians, so patients do not need to worry too much. Possible risks of cranial repair surgery Of course, cranial repair surgery needs to be performed under general anesthesia. First, when separating the entire flap from the original incision, it must be carefully separated to avoid splitting into the brain tissue; second, when putting the repair material, it must pay attention to the pressure, not to give a particularly large pressure, which needs to be evaluated before the surgery; third, between the repair material and the surface separated fascia, it needs to be sutured as tightly as possible and lifted up to avoid the occurrence of repair material secondary hematoma underneath. In conclusion, long-term cranial defects present a latent risk and patients should not take them lightly and should undergo surgical repair in a timely manner. Cranial repair is a relatively safe procedure with a high success rate, and patients do not have to worry too much about the risks of the procedure. Choosing an experienced physician can have a defense against the risk and improve the surgical cure rate.