Psoriasis is a non-contagious, skin disease that occurs when the immune system hinders the growth cycle of the cells.
The indications for psoriasis include:
• Plaques of red, inflamed skin, often covered with loose, silver-colored scales. These plaques may be itchy and painful and sometimes crack and bleed. In severe cases, the plaques will grow and merge into one another, covering large areas.
• Disorders of the fingernails and toenails, including discoloration and pitting of the nails. The nails may also begin to crumble or detach from the nail bed.
• Scaly plaques on the scalp.
• Small areas of bleeding where the involved skin is scratched.