The skull is one of the more important bones in the human body, and if we have to say what role it plays, we can clearly tell that it is like a shield for the brain, maintaining a stable intracranial pressure and intracranial environment, ensuring the normal operation of all life activities in the skull. However, some people are unfortunate enough to have a serious cranial defect due to a sudden accident, which can cause more problems if not treated in time. The more direct effect of cranial defect is that it will damage the appearance, and the patient will become very low self-esteem, psychological stress, which will affect the life and work. Moreover, after skull defect, the intracranial pressure and intracranial environment are also changed, which may even damage the brain nerve function and cause a series of skull defect syndrome, such as headache and dizziness, memory loss, inattention, emotional irritability and so on. Cranial defects should be taken seriously, and it is medically recommended that patients with a defect area of more than 3cm and eligible for surgery should go to the hospital for cranial repair surgery in time to restore the integrity of the skull and reshape a stable intracranial environment. Of course, in the skull repair surgery, the choice of repair material is very critical, the better the repair material chosen, the better the post-operative recovery will be. Currently, titanium mesh material is widely used in many places, but many patients may have infection and hot and cold sensitivity after surgery, and there are also some side effects, abrasion of the scalp, and even exposed material, so patients should be careful when choosing.