Psoriasis Home > Psoriasis


Most psoriasis results in patches of thick, red skin with silvery scales. These patches can itch or feel sore. They are often found on the elbows, knees, other parts of the legs, scalp, lower back, face, palms, and soles of the feet. However, symptoms can also show up on other places such as fingernails, toenails, genitals, and inside the mouth.
(Click Symptoms of Psoriasis for more information about these and other symptoms.)

Diagnosing Psoriasis

A diagnosis is usually made by examining the area of skin that is affected. Psoriasis can be hard to diagnose because it can look like other skin diseases. The doctor might need to look at a small skin sample under a microscope.
(Click Psoriasis Diagnosis for more information about diagnosing this condition.)

How Is Psoriasis Treated?

Healthcare providers will recommend treatment options for psoriasis based on:
  • The severity of the disease
  • Size of the areas involved
  • Type of psoriasis
  • A person's response to initial treatments
  • The cost and convenience of treatment.
Recommendations can include:
Not all treatments will work the same for everyone. Healthcare providers may switch treatments if one doesn't work, if there is a bad reaction, or if the treatment stops working.
Written by/reviewed by:
Last reviewed by: Arthur Schoenstadt, MD
Last updated/reviewed:
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