If excessive sweating has no underlying medical cause, it’s called primary hyperhidrosis. It happens when excess sweating is not triggered by a rise in temperature or physical activity. Primary hyperhidrosis may be at least partly hereditary.

If the excess sweating is due to an underlying medical condition, it’s called secondary hyperhidrosis.

Health conditions that might cause excessive sweating include:

    Acromegaly

    Diabetic hypoglycemia

    Fever of undetermined cause

    Hyperthyroidism (overactive thyroid)

    Infection

    Leukemia

    Lymphoma

    Malaria

    Medication side effects

    Menopause

    Neurologic disease

    Pheochromocytoma (a rare adrenal gland tumor)

    Tuberculosis

Causes shown here are commonly associated with this symptom. Work with your doctor or other health care professional for an accurate diagnosis.

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Source: Mayoclinic