Thirst - absent

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Absence of thirst is a lack of the urge to drink fluids, even when the body is low on water or has an excess amount of salt.

Adipsia; Lack of thirst; Absence of thirst

Not being thirsty at various times during the day is normal, if the body does not need fluid replacement. However, a quick change in the need for fluids should prompt a visit to your doctor.

As people age, they are less likely to notice their thirst and may not drink fluids when needed.

Causes of abscence of thirst may be due to:

• Birth defects of the brain
• Bronchial tumor that causes SIADH
• Hydrocephalus
• Injury or tumor of part of the brain called the hypothalamus
• Stroke

Review Date: 01/31/2011
Reviewed By: Linda J. Vorvick, MD, Medical Director, MEDEX Northwest Division of Physician Assistant Studies, University of Washington, School of Medicine. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.

A.D.A.M., Inc. is accredited by URAC, also known as the American Accreditation HealthCare Commission (www.urac.org).

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