Hyperhidrosis is a medical condition characterized by excessive and unpredictable sweating that occurs even when the body is at rest, not just when it’s hot or during exercise. It can significantly interfere with daily activities and social interactions, leading to embarrassment, self-consciousness, and sometimes physical problems like difficulty gripping objects or foot slipping.

There are two main types of hyperhidrosis:

  • Primary Focal Hyperhidrosis: This is the most common type and usually affects specific areas of the body symmetrically (on both sides). The cause is often unknown but appears to run in families, suggesting a genetic link. The most commonly affected areas are the palms of the hands, soles of the feet, armpits, and sometimes the face or scalp. It typically begins during childhood or adolescence and the sweating usually stops during sleep.
  • Secondary Generalized Hyperhidrosis: This type of excessive sweating is a symptom or side effect of an underlying medical condition (such as diabetes, hyperthyroidism, menopause, or certain infections or cancers) or a medication. The sweating can occur over larger, more generalized areas of the body and may also happen during sleep.