In the clinical work of neurosurgery, craniocerebral injury is one of the most common diseases. According to the length of coma after injury and clinical manifestations, craniocerebral injuries can be categorized into four levels: mild, moderate, severe and critical. In this program, we talk to you about related issues. Explanation: In life, many accidental injuries or some craniocerebral diseases may cause craniocerebral injury. In the clinical work of neurosurgery, craniocerebral injury is one of the most common diseases. Then how to determine and deal with craniocerebral injury? Answer: Slight craniocerebral injury is generally within half an hour of unconsciousness after the injury, with mild headache, dizziness, blood pressure, pulse, body temperature are normal. Moderate craniocerebral injury is usually within 12 hours of unconsciousness, with some mild neurological reactions, such as aphasia or limb movement disorders, and some changes in blood pressure and pulse rate. Severe craniocerebral injury is a coma that lasts more than 12 hours, with unstable vital signs: respiration, blood pressure, pulse, and even shock and other organ damage. Critical type is the possibility of respiratory arrest, heartbeat, blood pressure, pulse are no longer stable. The main thing is to make a diagnosis based on the patient’s state of consciousness. Explanation: In daily life, moderate and severe craniocerebral injuries are easier for people to judge, while mild craniocerebral injuries are sometimes easy to be ignored. Experts say that once you are in a coma after a blow to the head, you should go to a specialized hospital for checkups to avoid delaying the time of treatment. Especially the elderly group, due to the body’s reaction is slower compared with young people, cardiovascular and cerebrovascular is more fragile, so after the injury should pay more attention to enough, timely examination and treatment. Among the various symptoms of craniocerebral injury, cranial defect is a common manifestation. What causes cranial defects? What are the hazards of craniosynostosis? Answer: The craniosynostosis we routinely talk about in our clinic is due to the increase of intracranial pressure after the surgery, and the inability to return the bone flap during the surgery, resulting in the formation of post-surgical residual cranial defects, which is clinically diagnosed as acquired post-surgical craniosynostosis. Rarely, it is congenital, such as craniosynostosis caused by cranial dehiscence, which includes malformation of the brain, cerebral bulging, etc. In clinical practice, we often refer to craniosynostosis as a congenital defect. The vast majority of the cranial defects that we often talk about clinically are caused by failure to return the bone flap after surgery, and they are large. This will have some clinical symptoms, such as headache, dizziness, unattractive appearance, some of the brain tissue is puffed outward from the bone window, in addition, there is also a localized depression, so that it can be seen in the appearance, which affects the aesthetics. That is why it is still recommended to do the surgery for cranial repair as early as three months after the surgery.