Causes
- Autoimmune T-cell overactivation triggering hyperproliferation of keratinocytes
- so cells mature in days instead of weeks
Symptoms
- Raised red plaques topped with thick silvery-white scales
- dry cracking skin that bleeds
- nail pitting
Risk Factors
- Genetic predisposition
- acute psychological stress
- skin abrasions or cuts
- cold dry climates
- smoking