Hyperhidrosis is a condition characterised by excessive, uncontrolled sweating, often out of proportion to the ambient temperature or physical activity. It can affect the underarms, palms, soles, face or other areas, causing embarrassment, social discomfort and the need for frequent clothing changes.
Hyperhidrosis is diagnosed when sweating is persistent even at rest and interferes with daily activities such as dressing, working or shaking hands. It may be primary (with no obvious cause, often familial) or secondary to medications or systemic diseases, which must be ruled out with the physician.