Irish Skin Foundation-supporting people with skin conditions in Ireland

Psoriasis is a chronic skin disease that affects over 100,000 people in Ireland. Anyone can develop psoriasis, and it is equally common in men and women.

Psoriasis: The Facts


Fast facts about psoriasis

  • Psoriasis is a chronic inflammatory skin disease
  • Psoriasis has no known cause
  • The tendency toward developing psoriasis is inherited in genes
  • Psoriasis is not contagious
  • Psoriasis gets better and worse spontaneously and can have periodic remissions (clear skin)
  • Psoriasis is controllable with medication
  • Psoriasis is currently not curable
  • There are many promising therapies, including newer biologic drugs


Psoriasis affects the life cycle of skin cells. It causes cells to build up rapidly on the surface of the skin, forming thick silvery scales and itchy, dry, red patches that are sometimes painful.

Psoriasis commonly affects the skin of the elbows, knees, and scalp. Psoriasis has many different appearances. It may be small flattened bumps, large thick plaques of raised skin, red patches, and pink mildly dry skin to big flakes of dry skin that flake off.