Pictures of psoriasis are available on MedicineNet.com, WebMD.com and MayoClinic.com. WebMD and Mayo Clinic also list symptoms of the condition, which often disappears and reappears on a cyclical basis.
Mayo Clinic offers photos of plaque, scalp, pustular and other forms of psoriasis, each of which exhibits slightly different symptoms. Plaque psoriasis is the most commonly diagnosed form of the skin disorder, manifesting as dry red patches of skin covered in smaller, pale scales or flakes. Scalp psoriasis is similar, but the symptoms are limited to the scalp. Pustular psoriasis is distinguished by tender, red skin and pus-filled blisters. Inverse psoriasis causes red patches to appear in skin folds, and nail psoriasis harms the way the nails grow.
WebMD offers an illustration of a psoriasis patch on the arm and detailed descriptions of possible symptoms. In general, plaque psoriasis patches appear on the knees, elbows and lower back, although the lesions may appear anywhere on the body. The patches are usually itchy, and scratching them sometimes causes bleeding. Discolored nails and swelling of the joints are also potential symptoms of psoriasis.
MedicineNet offers a slide show of images of psoriasis with varying degrees of severity. This website also displays information on psoriasis triggers and possible treatments.