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TriStar Centennial Medical Center

Symptoms of Psoriasis

There are several types of psoriasis. Each type of psoriasis has its own unique symptoms. These unique symptoms will help the doctor determine which type of psoriasis is present.

Copyright © Nucleus Medical Media, Inc.

The following is a brief outline of each type of psoriasis and a description of the accompanying signs and symptoms.

Plaque psoriasis is the most common form. It is named for the “plaques,” or lesions, that are characteristic of this type of psoriasis. Plaques tend to be stable and slow growing, and they may remain unchanged for long periods of time.

Signs and symptoms include:

  • Red, raised skin patches (plaques) topped by silvery-white scales
  • Frequent shedding of silvery scales
  • Outbreaks most frequent on the elbows, knees, scalp, buttocks, and lower back
  • Patches often occur in the same area on both sides of the body
  • Patches may join together to form large affected areas on the back and chest
  • May involve anywhere from a few areas to almost covering the entire body surface
  • Occasional discomfort and cracking in the affected areas, especially palms, fingers, and soles
  • Patches may be itchy

Guttate psoriasis is most often triggered by bacterial infections, such as streptococcus (strep throat) or viral infections, and is most common in childhood or young adulthood.

Signs and symptoms include:

  • Small, salmon pink, drop-like lesions on the trunk, limbs, and scalp

Most commonly found in skin fold areas of the body, such as the armpits, groin, under the breasts, and genital areas. This type of psoriasis is also known as flexural psoriasis.

Signs and symptoms include:

  • Smooth, pink or red, mostly dry patches without a scaly surface
  • Sensitivity to friction and sweating

This is the least common form of the disease. It can be triggered by severe sunburn, use of certain drugs, or abrupt withdrawal of oral steroids.

Signs and symptoms include:

  • Widespread, fiery redness of the skin
  • Severe itching and discomfort in the affected areas
  • Possible swelling of the affected areas

This form of psoriasis may be triggered by medication, emotional stress, infections, abrupt withdrawal of systemic steroids, or exposure to certain chemicals. It is a more rare form of psoriasis.

Signs and symptoms include:

  • Blisters containing noninfectious pus in large (generalized) or small (localized) areas of the body
    • Localized: Blisters confined to local areas, usually the palms, fingers, and soles. Pustules appear in a studded pattern, turn brown, and then peel.
    • Generalized: Blisters spread over large portions of the body, dry, and then recur again in repeated cycles lasting several days.

Nail findings may include:

  • Pitting
  • Onycholysis—nail detachment
  • Subungual hyperkeratosis—buildup underneath the nail
  • Oil-drop sign—yellow-red discoloration of the nail bed

Revision Information

  • Psoriasis. EBSCO DynaMed website. Available at: Updated November 18, 2015. Accessed November 20, 2015.

    About Psoriasis. National Psoriasis Foundation website. Available at: Accessed November 20, 2015.

  • Psoriasis. American Academy of Dermatology website. Available at: Accessed November 20, 2015.

The health information in this Health Library is provided by a third party. TriStar Health does not in any way create the content of this information. It is provided solely for informational purposes. It does not constitute medical advice and is not intended to be a substitute for proper medical care provided by a physician. Always consult with your doctor for appropriate examinations, treatment, testing, and care recommendations. Do not rely on information on this site as a tool for self-diagnosis. If you have a medical emergency, call 911.