Psoriasis is a common chronic skin disorder with prevalence of 2.7% in Iraqi community. Psoriasis is a skin disease that it's prevalence affected by many factors which include genetic, environmental, infectious, immunological, biochemical, endocrinological and psychological. Psoriasis is a chronic inflammatory disease with unknown exact pathogenesis, which may be started as skin condition that subsequently associated with systemic complications. The recurrent proliferative inflammatory processes in subject with psoriasis may lead to abnormal lipid metabolism and associated with cardiovascular diseases.