Hyperhidrosis refers to excessive perspiration caused by which of the following factors?

• A. Excessive perspiration caused by heat, genetics, medications, or medical conditions
• B. Normal sweating in response to heat
• C. Excessive sweating only due to emotional stress
• D. Frequent dehydration and dry skin

Answer: (A)

Hyperhidrosis is defined by excessive sweating that goes beyond what’s needed to cool the body. It can arise from multiple factors, including heat, genetic predisposition, certain medications, or underlying medical conditions. That combination fits the condition because it covers both inherited tendencies and external triggers that can drive unusually high sweat production.

Normal sweating in response to heat isn’t excessive; it’s a normal protective response, so it doesn’t describe hyperhidrosis. Sweating only due to emotional stress is too narrow, since hyperhidrosis can be triggered by heat as well as other factors. Dehydration and dry skin imply reduced moisture, not excessive sweating.