<unk> , or psychogenic<unk> , is a form of<unk>  characterised by excessive fluid intake in the absence of physiological stimuli to drink. Psychogenic<unk>  which is caused by psychiatric disorders, often schizophrenia, is often accompanied by the sensation of dry mouth. Some forms of<unk>  are explicitly non-psychogenic.<unk>  is a diagnosis of exclusion.
Primary polydipsia
Syndrome of inappropriate antidiuretic hormone secretion
Diabetic hypoglycemia
Reactive hypoglycemia
Idiopathic hypoglycemia
Ketosis-prone diabetes
Central diabetes insipidus
Nephrogenic diabetes insipidus