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.
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:
Follow your health care provider's recommendations.
Call for an appointment with your health care provider if you notice any abnormal lack of thirst.
The health care provider will take a medical history and perform a physical examination.
Medical history questions may include the following:
The physical examination may include a detailed nervous system examination if the health care provider suspects a head injury or problem with the hypothalamus. Diagnostic tests will vary depending on the history and physical examination findings.
Necessary fluids may be given through a vein (IV).
Adipsia; Lack of thirst; Absence of thirst
Robinson AG, Verbalis JG. Posterior pituitary. In: Kronenberg HM, Shlomo M, Polonsky KS, Larsen PR, eds. Williams Textbook of Endocrinology. 11th ed. Philadelphia, Pa: Saunders Elsevier;2008:chap 9.
Gibbs MA, Tayal VS. Electrolyte disturbances. In: Marx JA, Hockberger RS, Walls RM, et al, eds. Rosen’s Emergency Medicine: Concepts and Clinical Practice. 7th ed. Philadelphia, Pa: Mosby Elsevier; 2009:chap 123.
Updated 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.
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