The postoperative care of transnasal pituitary tumor mainly includes the following aspects: 1. Observe the patient’s urine volume and the nature of urine. This is because postoperative pituitary tumor can easily lead to the occurrence of uropyrosis. If the urine volume is greater than 250ml/h for 1-2h and the specific gravity of urine is lower than 1.005, the doctor needs to be notified immediately. Because this type of condition is mostly considered the occurrence of urolysis, it needs to be managed aggressively. If the uremia is not well controlled, it will lead to a large loss of body fluids, which will lead to disorders of water and electrolyte balance and even hypovolemic shock in serious cases. 2. Central venous pressure monitoring. Central venous pressure monitoring is of therapeutic guidance for postoperative pituitary tumors. This is because if uveitis occurs and central venous pressure is too low, rehydration can be guided better and more safely. 3. Nasal care. Since nasal tamponade is required after transnasal pituitary tumor surgery and is usually removed 3-6 days after surgery, it is necessary to observe the nasal cavity for blood leakage and cerebrospinal fluid nasal leakage at this moment.4. The patient’s state of consciousness and the occurrence of related complications, such as epilepsy, infection and fever, need to be closely observed.