Primary polydipsia

Primary polydipsia
Other namesPsychogenic polydipsia, compulsive drinking, psychosis-intermittent hyponatremia-polydipsia (PIP) syndrome
Patients with PPD often prefer ice cold water
SpecialtyPsychiatry
SymptomsXerostomia, polydipsia, fluid-seeking behavior
ComplicationsWater intoxication

Primary polydipsia and psychogenic polydipsia are forms of polydipsia characterised by excessive fluid intake in the absence of physiological stimuli to drink. Psychogenic polydipsia caused by psychiatric disorders—oftentimes schizophrenia—is frequently accompanied by the sensation of dry mouth. Some conditions with polydipsia as a symptom are non-psychogenic (e.g., early Type 2 diabetes, primary hyperaldosteronism, and zinc deficiency, and some forms of diabetes insipidus). Primary polydipsia is a diagnosis of exclusion.

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