Craniotomy is dangerous, because after all, the cranium is a very valuable organ of the human body, any damage to a nerve region may cause incalculable consequences, especially for some motor nerve centers, once the damage is done, it will cause numbness of the limbs, weakness, speech dysfunction of the situation, like this is very likely to be hemiplegia, aphasia and other manifestations of the prolonged bed-ridden state, even In some cases, it may lead to coma, and in more serious cases, it may cause the patient’s death. So craniotomy is a very dangerous surgery, this must be weighed before the operation, clear whether to carry out craniotomy treatment, from the psychological must be clear that craniotomy is very dangerous, this is very likely in the process of the operation on the disability and death, caused by a variety of clinical symptoms, leading to some adverse consequences, so it must be clear that the corresponding surgical procedures.