Psoriasis is an irritating skin condition that is characterized by the excess multiplication of skin cells. It is an unpredictable skin disorder that causes dead skin cells to rise to the surface of the skin in the form of raised plaques. Psoriasis usually occurs on the elbows, scalp, soles of your feet and knees. The condition causes your skin to turn red and scaly and usually requires stringent conventional treatment. Many disorders of the toenails and fingernails, including pitting and discoloration of the nails, are characterized as psoriasis.
This disorder can also be related to psoriatic arthritis which is a common cause for swelling and pain in the joints. Various forms of psoriasis include Pustular, Inverse, and Erythroderma psoriasis.