Under normal conditions, your skin wears away naturally and is replaced by new cells growing just below the surface. If you have psoriasis, this new cell growth is accelerated.
Cells pile up on each other causing deep, pink, raised patches covered by silvery-white scales.
The outbreaks usually occur on the scalp, elbows, palms, knees, trunk, or back and may be triggered by damage to the skin, periods of emotional distress or ill health. This disorder most commonly appears between the ages of 10 and 30 and tends to run in families. In general, psoriasis is not dangerous to your health. However, it can cause illness if neglected or allowed to spread over a large part of your body. It is best to avoid any unnecessary touching of affected areas.