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Medically reviewed by Last updated on Apr 2, 2024.

What is psoriasis?

Psoriasis is a long-term skin disease that causes skin cells to grow faster than normal. The cells build up on the surface of your skin and cause red patches. The cause of psoriasis is not known. A problem with your immune system or a family history of psoriasis may increase your risk. Psoriasis is not contagious. Psoriasis cannot be cured, but the symptoms can be managed.

What triggers a psoriasis flare-up?

Flare-ups come and go and are caused by certain triggers, such as the following:

What are the signs and symptoms of psoriasis?

Signs and symptoms depend on the type of psoriasis you have:

How is psoriasis diagnosed?

Your healthcare provider will ask about your symptoms and health history. Your provider may also ask if you have a family history of psoriasis. Your provider will look at your skin, scalp, and nails. Your provider may take a sample of your skin. Blood tests and x-rays may also be needed.

How is psoriasis treated?

Treatment depends on how severe your symptoms are, the size of the areas involved, and the type of psoriasis. You may need any of the following:

Treatment options

The following list of medications are related to or used in the treatment of this condition.

View more treatment options

How can I manage psoriasis?

What do I need to know about psoriasis and pregnancy?

Certain medicines that treat psoriasis may be harmful to an unborn baby. Tell your provider if you are pregnant or planning to get pregnant. Your provider can help you plan a safe pregnancy.

When should I seek immediate care?

When should I call my doctor or dermatologist?

Care Agreement

You have the right to help plan your care. Learn about your health condition and how it may be treated. Discuss treatment options with your healthcare providers to decide what care you want to receive. You always have the right to refuse treatment. The above information is an educational aid only. It is not intended as medical advice for individual conditions or treatments. Talk to your doctor, nurse or pharmacist before following any medical regimen to see if it is safe and effective for you.

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Learn more about Psoriasis

Treatment options

Symptoms and treatments guides (external)

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.