Minimally invasive brain surgery is also known as minimally invasive cranial surgery, which involves the use of certain techniques to make the wounds on the outside of the skull as small as possible, or even no wounds at all, such as endovascular interventions, where a sheath is punctured through the femoral artery and a guide wire and catheter are inserted to cure most cerebrovascular diseases. Pituitary tumors can also be treated by a transnasal pituitary approach, which is also minimally invasive and involves no wound to the head, but only a wound inside the nose. For cerebral hemorrhage can also be treated by CT-located puncture with about a coin-sized hole, which is part of the minimally invasive treatment. By going in for treatment by means of neuroendoscopy, 2-3 relatively small holes are made inside the skull, and there is no more wound of 10cm or even 20cm as before.