Psoriasis is a chronic skin condition that is marked by red and sometimes scaly patches of skin.

Psoriasis can have different appearances depending on where and what type it is.

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If you have symptoms of psoriasis, take a look through pictures to determine if it’s scalp, guttate, or plaque psoriasis, for example, or if it’s eczema.

Once you determine which type of psoriasis you may have, you’ll be able to treat it more effectively.

In general, psoriasis consists of scaly, silvery, sharply defined skin patches. It may be located on the scalp, elbows, knees, and lower back, and it may be itchy or asymptomatic.

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Psoriasis outbreaks on the scalp are common in people with scalp psoriasis.

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Guttate is a type of psoriasis in which the affected patches of skin appear as small, separated teardrops.

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Plaque psoriasis, the most common form of psoriasis, affects about 4 million people in the United States.

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Do you have psoriasis, or is it eczema? Knowing what to look for can help determine which skin condition you’re dealing with.

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Inverse psoriasis, or intertriginous psoriasis, is a form of the disease that affects skin folds.

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About half of people with psoriasis, and around 80 percent of people with psoriatic arthritis, the related joint condition, develop nail changes, according to the National Psoriasis Foundation.

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A type of psoriasis called pustular psoriasis causes white, noninfectious pus-filled blisters (pustules).

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