← | Psoriasis elbow pictures The reason for the progression of psoriasis on the elbows (as well as other localizations of psoriasis) is a mystery to doctors. Nevertheless, it is believed that the causes are low immunity, high stress load, metabolic disorders and immune system failure. Psoriasis on the elbows can be both pustular or plaque and exudative. With these localizations of the disease the risk for psoriatic erythroderma is great which in its turn is fraught with such lesions as arthritis. | → |