What Causes Palmoplantar Psoriasis?
Palmoplantar psoriasis is one of the most common forms of psoriasis. Psoriasis is predominantly an autoimmune disease. Normally the immune system is activated by viruses, bacteria and other infections. However, in the case of psoriasis, the immune system becomes abnormally activated to recognize the skin tissue as an infection. As a result, the white blood cells of the immune system release chemicals that cause inflammation, which leads to skin damage and the reddening and silvery scales that mark psoriasis. This can be especially difficult in the case of palmoplantar psoriasis because the skin on the palms and the bottom of the feet is very thick and leads to bothersome itching.
