Minimally invasive surgery and open surgery have their advantages and disadvantages. This situation cannot be generalized, but has to be analyzed on a case-by-case basis. For example, if the patient has a pituitary tumor and this pituitary tumor is mainly below the saddle diaphragm, the results of minimally invasive neuroendoscopic surgery are usually very good. If the pituitary tumor has developed above the saddle diaphragm, minimally invasive surgery may not solve the problem and craniotomy is required to solve the problem completely. Another example is chronic subdural hematoma, which is very effective with minimally invasive surgery, while acute subdural hematoma must be treated with craniotomy. In short, if you can choose minimally invasive, you do not have to choose craniotomy.