Skull fractures are usually not serious, but they are more serious if they involve important structures. Skull fractures can be divided into linear fractures and depressed fractures according to the shape of the fracture, as follows: First, linear fractures, which usually occur in the skull cap and skull base area, and the patient will have local pain and swelling. The fracture usually heals smoothly, but if the fracture line passes through the meningeal vascular sulcus or venous sinus, an epidural hematoma can easily form, which can be dangerous to the patient’s life. Secondly, depressed fractures, commonly found in the skullcap, can be localized as comminuted fractures, and shallow depressions do not cause significant effects, while deeper depressions can directly damage the brain tissue, causing increased intracranial pressure and even brain herniation, and can also be combined with intracranial infections, making them relatively serious.