What it is
Most often there is no underlying cause (primary hyperhidrosis). Sometimes it is caused by a medicine, an overactive thyroid, menopause, infection or another condition, especially if it affects the whole body or starts suddenly in adulthood.
Strong antiperspirants, iontophoresis for hands and feet, botulinum toxin injections, tablets and, rarely, surgery can help.
Common signs
- Sweating that soaks clothes or drips from the hands
- Sweating that affects daily activities
- Sweating at least once a week for no clear reason
- Skin softening or infections in sweaty areas
How it is usually diagnosed
- Questions about symptoms
- Blood tests if an underlying cause is suspected
Records worth keeping
Keeping these together makes each appointment easier, especially when you see a new doctor:
- Blood test results, if done
- Treatments tried and how well they worked
Questions to ask your doctor
- Could something be causing this, such as a medicine or my thyroid?
- Which treatment should I try first?
- Could I be referred to a dermatologist?
When to get help right away
Call 112 or go to the nearest emergency department if you have:
- Sweating with chest pain, breathlessness or feeling faint: call 112
- Night sweats with weight loss or fever need prompt review
This page is general information. It is not a diagnosis and does not replace a doctor who knows your history. Medfold keeps your records organised; it does not interpret them.