Causes of<unk>  include conditions that dysregulate ADH<unk>  in the central nervous system, tumors that secrete ADH, drugs that increase ADH<unk> , and many others. A list of common causes is below:
Syndrome of inappropriate antidiuretic hormone secretion
Central diabetes insipidus
Nephrogenic diabetes insipidus
Apparent mineralocorticoid excess syndrome
Primary polydipsia
Adrenal crisis
Cerebral salt-wasting syndrome
Exercise-associated hyponatremia