Background: Psoriasis is chronic and reccurent inflammatory skin disease, characterized by erythema plaque lesions coated with silvery white, and demarcated of various sizes. The prevalence of psoriasis in Indonesia reaches 2,5% of the population. Plaque psoriasis or known as psoriasis vulgaris, is the most common type and reaches 90% of all psoriasis cases. There is a hypothesis that obesity i…