In recent years, various large traffic accidents are common, and it is because of these accidents that craniocerebral trauma is becoming more and more common. Craniocerebral trauma is of course very dangerous, and if the situation is serious and not treated in time, the disability and death rates are very high, so once craniocerebral trauma occurs, it should be treated in time, and if necessary, craniotomy and decompression surgery should be performed. In clinical practice, debridement decompression is a common surgical procedure for the treatment of heavy craniocerebral injury, especially when the patient has elevated intracranial pressure, intracranial hematoma, subdural hematoma and brain hernia formation, the situation is more dangerous, and many times need to do debridement decompression in time. Is decompression of skull and brain injury considered serious? It is important to point out that debridement decompression is very important in helping to reduce the patient’s intracranial pressure. The procedure can help to fully reveal the bleeding site, effectively remove the hematoma, and open the limited intracranial space to avoid intracranial hypertension on the brain tissue structure compression, helping to save the patient’s life. Of course, there are some risks associated with debridement decompression, and there are certain safety risks associated with the cranial defects that remain after surgery. Cranial defects can pose a threat to skull appearance, cranial safety and cerebral nerve function, and some patients can develop severe cranial defect syndrome, so it is generally recommended that patients with a cranial defect of 3 cm or more need to undergo cranial repair surgery in a timely manner.