What causes hyperhidrosis?

Updated: Mar 23, 2021
  • Author: Robert A Schwartz, MD, MPH; Chief Editor: William D James, MD  more...
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Answer

Excessive sweating may be primary (idiopathic) or secondary to medication or disease. Secondary causes include endocrine diseases such as diabetes mellitus, hyperthyroidism, and hyperpituitarism. In one series, one third of cases were neurologic in origin, including peripheral nerve injury, Parkinson disease, reflex sympathetic dystrophy, spinal injury, and Arnold-Chiari malformation. Additional causes to consider include pheochromocytoma, respiratory disease, and psychiatric disease. Asymmetric hyperhidrosis may suggest neurologic disease. [25]


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