多汗症，是一种症状，系指身体在必要性的调节体温的范围时，产生异常增加发汗的症状。好发于手、足、腋窝（即腋下），在日常生活中被认为是有过度发汗的疾病患者。

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• 皮肤科学
• 汗
• 交感神经
• 副交感神经
• 涙
• 手掌多汗症

Hyperhidrosis is a condition characterized by abnormally increased sweating, in excess of that required for regulation of body temperature. Hyperhidrosis can be associated with a quality of life burden from a psychological, emotional, and social perspective. It has been called by some 'the silent handicap'.