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| Definition: | Abnormal lack of sweat in response to heat.
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| Alternative Names: | Decreased sweating; Anhidrosis
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| Considerations: | Anhidrosis sometimes goes unrecognized until a substantial amount of heat or exertion fails to cause sweating.
Overall lack of sweating can be life threatening because the body will overheat. If the lack of sweating is localized, it is usually not as dangerous.
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| Common Causes: | - neurologic disorders such as Guillain-Barre syndrome
- skin diseases that block sweat glands
- congenital disorders including as ectodermal dysplasia
- some drugs
- trauma to sweat glands
- burns
- dehydration
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Review Date: 11/11/2001
Reviewed By: Michael Lehrer, M.D., Department of Dermatology, University of Pennsylvania Medical Center, Philadelphia, PA. Review provided by VeriMed Healthcare Network.
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