Stomach bloating, dizziness and nausea may be related to pituitary tumor, but they may also be caused by other diseases such as cerebral infarction. Pituitary tumor is a tumor disease originated from adenopituitary gland, which can compress intracranial nerves, leading to headache, vision loss, dizziness, nausea, vomiting, etc. Pituitary tumor can also lead to intracranial hemorrhage, which triggers intracranial pressure increase, and can also lead to the above symptoms. However, stomach distension, dizziness and nausea may also be the clinical manifestations of other diseases, such as cerebellar infarction and Meniere’s disease, etc. In addition to the above symptoms, the former may be accompanied by symptoms such as unsteady walking and impaired movement of limbs, and the latter may be accompanied by symptoms such as tinnitus and hearing loss. When stomach distension, dizziness, nausea and other discomforts occur, you should go to the hospital in time, and if necessary, undergo cranial magnetic scanning and other tests to clarify the cause and target treatment.