Psoriasis is a kind of common chronic inflammatory disease of skin, its cause is complicated, various kinds of internal and external factors participate in its pathogenesis.

Noni leaf has been used for the treatment of gingivitis, periodontal diseases, laryngalgia, laryngitis, sprain, skin disease, and so on.

Without treatment, about 10% of affected individuals would develop disfiguring and disabling complications after five years because the disease may cause gross destruction of the skin and bones.