The risk of having a pituitary tumor surgery ranges from about 3% to 5%, and with larger hospitals or more skilled specialists, it’s basically possible to keep it to about 2%, which is relatively low risk. But after all, it is a surgery, and it is invasive surgery, and it needs to be taken seriously. First, the biggest risk is the rupture of the internal carotid artery during surgery. Once the internal carotid artery is ruptured, the possible consequences are catastrophic, but the incidence is very small, so you don’t need to worry too much. Second, nerve damage, because there are abundant nerves in the cavernous sinus, once the operation is not careful, it is possible to damage the nerves. Third, postoperative bleeding, because the process of surgery will damage certain blood vessels, if the electrocoagulation is not complete, postoperative blood pressure control is not stable, very likely to appear after the operation again bleeding. Fourth, intracranial infection, because after all, from the nasal cavity into the nasal cavity, the nasal cavity is not a very clean environment, there may also be retrograde intracranial infection, it is necessary to carry out timely observation and treatment accordingly.