|Classification and external resources|
Polyphagia or hyperphagia is excessive hunger or increased appetite. It derives from the Greek words πολύς (polys) which means "very much" or "many", and φαγῶ (phago) meaning "eating" or "devouring".
In medicine, polyphagia (sometimes known as hyperphagia) is a medical sign meaning excessive hunger and abnormally large intake of solids by mouth. It can be caused by disorders such as diabetes, Kleine–Levin syndrome (a malfunction in the hypothalamus), and the genetic disorders Prader–Willi syndrome and Bardet–Biedl syndrome.
Causes of increased appetite include:
- Certain drugs
- Diabetes mellitus
- Premenstrual syndrome
- Prader-Willi syndrome
- Graves' disease
- Kleine–Levin syndrome
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- Updated by: Linda J. Vorvick, MD, Medical Director and Director of Didactic Curriculum, MEDEX Northwest Division of Physician Assistant Studies, Department of Family Medicine, UW Medicine, School of Medicine, University of Washington, Seattle, WA. Also reviewed David Zieve, MD, MHA, Isla Ogilvie, PhD, and the A.D.A.M. Editorial team. "Appetite - increased". nih.gov.
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