Any disease of the pituitary can cause problems with hormone production. These problems include: pituitary mass lesions, pituitary surgery, empty sella, pituitary radiation, hemochromatosis, lymphocytic hypophysitis, Sheehan's syndrome, genetic diseases, pituitary abscess, pituitary apoplexy
These disorders can also cause problems with the secretion of ADH which can cause diabetes insipidus. These problems include: hypothalmic mass lesions, hypothalamic radiation, hypothalmic infections
Head trauma which fractures the skull base can cause hypothalmic hormone dysfunction. The probability of pituitary function being affected is directly related to the severity of the injury.
These are rare strokes that affect the pituitary of hypothalamus.