If the intracranial fracture is linear and does not involve important blood vessels or meningeal tissues, it is not serious. If the above important tissues are involved, it will be more serious, the details are as follows: Firstly, intracranial fracture is only linear in shape and does not lead to a lot of hemorrhage, which is usually relatively mild at this time. After conservative treatment, the fracture will soon heal smoothly and the patient will not have serious complications. Secondly, intracranial fracture, such as depressed fracture or linear fracture, which involves the vascular sinus and other important structures, can lead to intracranial hemorrhage, and even serious brain hernia, which can endanger the patient’s life and cause cardiac arrest and respiratory arrest, and is therefore more serious. Whether an intracranial fracture is serious or not depends on the structure of the injury and the patient’s clinical symptoms.