Hyperhidrosis (Excessive Sweating)
Hyperhidrosis (Excessive Sweating) — a condition marked by sweating well beyond what the body needs to regulate temperature, often affecting the palms, soles, underarms, or face. It can be primary, with no underlying cause, or secondary to another medical condition or medication. Because persistent moisture affects the skin surface, it may contribute to irritation, odor, and higher risk of certain skin infections.
Key points
- Primary focal hyperhidrosis usually appears in specific areas and often begins in childhood or adolescence.
- Excess moisture can soften and macerate skin, creating conditions where bacteria and fungi are more likely to grow.
- Antiperspirants containing aluminum salts are a common first-line approach for managing localized sweating.
- Sudden or generalized excessive sweating should be evaluated by a healthcare professional to rule out an underlying cause.
Frequently asked
What is the difference between antiperspirant and deodorant?
Antiperspirants reduce sweat by temporarily blocking sweat ducts, usually with aluminum-based ingredients, while deodorants mask or reduce odor without stopping sweat. Products can combine both functions.
Does excessive sweating cause body odor?
Sweat itself is largely odorless, but when it lingers on skin, bacteria break it down and produce odor. Managing moisture and cleansing regularly can help limit this.
Related topics
This is a foundational entry in the SYNC Skin Encyclopedia and is expanded over time. Educational information only — not medical advice.
