Hyperhidrosis can be divided into.
-
Primary and secondary forms:
- Primary (idiopathic) hyperhidrosis is always focal
- Secondary forms are usually generalized, less often regional or localized (focal)
- Generalized, regional and localized forms.
Hyperhidrosis Disease Severity Scale (HDSS).
| Grade | How would you rate the extent of your sweating? |
| I | My sweating is never noticeable and never interferes with my daily activities. |
| II | My sweating is tolerable and sometimes interferes with my daily activities |
| III | My sweating is barely tolerable and frequently interferes with my daily activities. |
| IV | My sweating is unbearable and always interferes with my daily activities. |
The validity and reliability of the HDSS has been analyzed by studies and correlates strongly with hyperhidrosis and gravimetric sweat production.
Categories of night sweats according to Quigley et al.
| Expression | Definition |
| Mild | No need to change bedding, sweating is not answered positively until asked. |
| Moderate | No bed linen change required, washing of affected body areas required, sweating presented as a “specific problem”. |
| Strongly | Patient reports being “drenched in sweat,” change of bedding or nightclothes or both is necessary. |