For brain tumor surgery, it must be judged on a case-by-case basis. The nature and location of each tumor, the shape of the tumor, and the type of surrounding tissue all determine the different approaches to tumor surgery. For the simplest convex meningioma, the first step is to disinfect the towel, cut the scalp, close it with a scalp clip, drill and cut the skull, open the dural window to stop the bleeding, open the dura and find the boundary of the tumor, then gradually remove the tumor by bipolar electrocoagulation, or in some cases, apply ultrasonic suction, and then cover with sterile tampons and gauze to stop the bleeding, and finally The surgery is completed with cranial closure and skin suturing. Of course, there are other forms of tumors, including the transnasal pterygoid approach for pituitary tumor resection, where the neuroendoscope is inserted through the nose, the saddle septum is opened, and the pituitary tumor is removed and then closed again to stop the hemorrhage. There are other types of tumors, including meningiomas like those in the greater occipital foramen, that require a distal lateral approach for treatment. For auditory nerve sheath tumors, the posterior sigmoid sinus approach is usually required to go in for surgical treatment. Therefore, for each surgery, there are different surgical approaches and treatment methods, and some even require combined surgical treatment, so it must be judged according to the specific condition.