Primary focal hyperhidrosis seems to stem from a minor malfunction in the nervous system and localized to specific body areas.
Secondary Hyperhidrosis could be due to an underlying health condition such as:-
- Menopause
- Pregnancy
- Thyroid problems
- Diabetes
- Alcoholism
- Infectious diseases like tuberculosis
- Parkinson's disease
- Rheumatoid arthritis
- Stroke
- Heart failure
- Cancers like leukemia and lymphoma