Excessive Sweating (Hyperhidrosis)

Sweating is the body’s normal cooling mechanism, but excessive sweating — called hyperhidrosis — occurs when sweat production is greater than needed to regulate temperature. It may affect specific areas such as the palms, soles, underarms, or face, or occur throughout the body. Excessive sweating can disrupt daily life, cause social anxiety, and may be a sign of an underlying health issue.

• Primary hyperhidrosis: Overactive sweat glands without an underlying disease, often beginning in adolescence.
• Secondary hyperhidrosis: Caused by other conditions or medications, such as:

Menopause (hot flashes)

Thyroid disease

Diabetes or low blood sugar

Infections (tuberculosis, HIV, endocarditis)

Certain medications (antidepressants, opioids)

• Risk factors: Family history of hyperhidrosis, young age at onset, obesity, and anxiety disorders.

See a doctor if sweating is excessive, persistent, or occurs mainly at night; if it is associated with weight loss, chest pain, rapid heartbeat, or fever; or if it interferes significantly with work, social interactions, or quality of life.