Why does hyperhidrosis cause excessive sweating?

Sweating is controlled by nerves that activate eccrine sweat glands. In hyperhidrosis, this signalling can be overactive in areas such as the palms, soles, underarms, face, or scalp. Excessive Sweating is a very common presentation of Hyperhidrosis; that explains the condition's usual symptom pattern and does not diagnose hyperhidrosis from sweating alone.

Some people mainly sweat from particular areas without another illness. In others, a medicine or health condition can contribute, so the timing, distribution, sleep symptoms, and accompanying changes matter.

Keep a record of triggers, affected areas, time of day, medicines, and how sweating interferes with work or social activities. Wear breathable clothing, change damp garments, and protect skin from friction. A clinician may discuss antiperspirants containing aluminium salts, prescription treatments, injections, device-based options, or other approaches according to the affected area and your health history.

Apply products exactly as directed and avoid putting strong antiperspirants on broken or freshly shaved skin. Persistent dampness can irritate skin and encourage fungal or bacterial overgrowth.

Arrange medical assessment when sweating starts suddenly, occurs during sleep, affects the whole body, follows a medicine change, or comes with weight change, fever, tremor, chest symptoms, or feeling unwell. Sudden sweating with chest pain, breathing difficulty, faintness, or confusion needs urgent emergency care.

Ask whether the pattern suggests primary or secondary sweating, whether medicines or tests should be reviewed, which treatment fits the affected area, and how to protect irritated skin.