Cranial defects are a relatively common disorder. In life, such as falling objects, fights or production safety accidents can lead to craniocerebral injuries resulting in skull defects, in addition to some cranio-cerebral surgery sometimes inevitably leave skull defects. Generally speaking, skull defects need to be repaired, but some patients tend to get away with it and ask how many years they can live without repairing their skull. The role of the skull is very important to the human body, it plays a role in protecting the brain tissue, maintaining normal intracranial pressure, etc., and a defective skull can cause great harm to the human body. First of all, without the protection of the hard skull, the brain is easy to be injured, in addition, the intracranial pressure is unstable, the intracranial life activities may be interfered with, which may be manifested as headache, dizziness; the patient’s fear of pulsation, bulging and collapsing of the defect area, as well as the fear of the sun, the fear of vibration and even fear of the sound of the noisy noise; it may also cause inattentiveness and memory loss, and also some patients may manifest as melancholy, fatigue, low speech and low self-esteem, and so on, reticence as well as low self-esteem and so on. So it’s hard to say how many years you can live without cranial repair, you should still repair your cranial defect as soon as possible, and you should use a good material to repair it, so the result will be more ideal. Our team uses the advanced peek material, i.e. polyetheretherketone, to perform cranial bone repair, which achieves ideal results. After the repair is completed, the patient can enjoy his or her life to the fullest extent without affecting his or her life expectancy.