Minimally invasive pituitary tumor surgery generally refers to a transnasal, pituitary tumor approach to go in and remove the pituitary tumor. This procedure is also relatively simple, usually after satisfactory general anesthesia, the unilateral nostril is selected for sterilization, and then a special mirror is applied to penetrate deep inside the nostril, paying attention to find the anterior wall of the pterygoid sinus, and then the anterior wall of the pterygoid sinus is opened with special forceps, commonly known as biting forceps. Note the surrounding vessels as well as the nerves, and then gradually proceed to expose them accordingly, all the way to the pituitary gland, or saddle base. This reveals a relatively obvious downward protrusion on the saddle base, which can then be scraped with a special scraping forceps, or sometimes directly with similar forceps. Basically, the pituitary tumor can be scraped out in about ten times, and the surgery can be finished after observing the surrounding blood vessels and nerves, keeping no bleeding and no damage to the nerves, and then gradually applying the expansion sponge to fill the corresponding fistula and repairing the bone removed before.