An immune disorder causing skin cell build up, forming scales and dry patches.
The symptoms of psoriasis vary depending on the type you have. Psoriasis typically occurs on the knees, elbows, and scalp, and it can also affect the torso, palms, and soles of the feet.
Plaques of red skin, often covered with loose, silver-colored scales; these lesions may be itchy and painful, and they sometimes crack and bleed. In severe cases, the plaques of irritated skin will grow and merge into one another, covering large areas.
Disorders of the fingernails and toenails, including discoloration and pitting of the nails; the nails may also begin to crumble or detach from the nail bed.
Plaques of scales or crust on the scalp.
Psoriasis can also be associated with psoriatic arthritis, which leads to pain and swelling in the joints.
Despite the fact that psoriasis is incurable, it responds well to many topical and systemic treatments. Even people with severe psoriasis can get relief during flare-ups in about 85% to 90% of cases.