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The major types of psoriasis include the following.
Plaque psoriasis is the most common type.
Nearly 90% of people with psoriasis have this type.footnote 1 Symptoms of plaque
Guttate psoriasis is the second most common
type, affecting up to 10% of people who have psoriasis.footnote 1 It is also called raindrop psoriasis.
People with guttate psoriasis may have:
Psoriatic arthritis occurs in 10% to 15% of
people who have psoriasis.footnote 2 Estimates vary depending on the population being studied
and the method of diagnosis. Symptoms of psoriatic arthritis include:
Inverse psoriasis includes sores that are:
Pustular psoriasis is another type, and its
Erythroderma, or exfoliative psoriasis, is an
extremely rare form that may be disabling or fatal. People with erythroderma
Abel E, Lebwohl M (2008). Psoriasis. In EG Nabel, ed., ACP Medicine, section 2, chap. 3. Hamilton, ON: BC Decker.
Winchester R (2008). Psoriatic arthritis. In K Wolff et al., eds., Fitzpatrick's Dermatology in General Medicine, 7th ed., vol. 1, pp. 194–206. New York: McGraw-Hill Medical.
ByHealthwise StaffPrimary Medical ReviewerAdam Husney, MD - Family MedicineSpecialist Medical ReviewerAmy McMichael, MD - Dermatology
Current as ofFebruary 20, 2015
Current as of:
February 20, 2015
Adam Husney, MD - Family Medicine & Amy McMichael, MD - Dermatology
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