Psoriasis is a hereditary disease that causes chronic symptoms that may occur in the skin and in the joints as a result of inflammation. Many different organs in the body can be affected by the disease. There is a connection between psoriasis and cardiovascular diseases, gastrointestinal disorders and eye diseases.
In skin psoriasis, the skin cells are formed more frequently than usual. This leads to redness, scaling and dry spots on the skin and the scalp.
Nearly half of those who have psoriasis also suffer from psoriatic arthritis, an inflammatory joint disease that causes pain and rigidity.