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Symptoms
By Mayo Clinic staffThe primary sign of anhidrosis is little or no perspiration. This can occur:
- Over most of your body
- In a single area
- In scattered patches
Unaffected areas sometimes try to compensate by producing too much perspiration, so it's possible to sweat profusely on one part of your body and very little or not at all on another. Anhidrosis can develop on its own or as one of several signs and symptoms of another disorder, such as diabetes or psoriasis.
Anhidrosis that affects a large portion of your body prevents proper cooling, so vigorous exercise, hard physical work and hot weather can cause heat cramps, heat exhaustion or even heatstroke. Signs and symptoms include:
- Little or no perspiration
- Dizziness
- Muscle cramps or weakness
- Flushing
- Heart palpitations
- In the most severe cases, hallucinations, coma or death
