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Real members of MyPsoriasisTeam have posted questions and answers that support our community guidelines, and should not be taken as medical advice. Looking for the latest medically reviewed content by doctors and experts? Visit our resource section.
September 16, 2025
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A MyPsoriasisTeam Member

Bobbie, In my experience they can take a sample and test for bacteria or fungal infection. If it is neither, then they presume it is an inflammatory or autoimmune disease. For this diagnosis, they examine it and look at your skin history. I always believe in a second opinion for sure unless you trust your dermatologist. I have been with mine 10 years, but he knows when to refer out if he feels uncomfortable or is not sure.

September 17, 2025
A MyPsoriasisTeam Member

Hi Trina
Just dropped my medical insurance to an advantage plan starting next month to save as have been falling behind financially since all this happened. Am unsure about what tests might be covered while still on this plan. Have 2 derms & 1 did a skin test & had no staph but would really like to know WTH I actually have with 4 conditions they’ve mentioned.
The derm who recently removed the keratin as us not covered on my new plan but have another one lined up. So much uncertainty involved in getting a correct diagnosis as alot of my symptoms are similar to 3 conditions so thx so much for your info 🤩

September 17, 2025
A MyPsoriasisTeam Member

Hi Trina
That was supposed to say he removed keratoacanthoma’s
Not keratin 😵‍💫

September 17, 2025
MyPsoriasisTeam

While there isn't a single definitive test for psoriasis, doctors can usually diagnose it through a physical examination of your skin. In cases where the diagnosis isn't clear from visual inspection alone, they may perform a punch biopsy (taking a small skin sample) to confirm the condition.

People with psoriasis typically Show Full Answer

While there isn't a single definitive test for psoriasis, doctors can usually diagnose it through a physical examination of your skin. In cases where the diagnosis isn't clear from visual inspection alone, they may perform a punch biopsy (taking a small skin sample) to confirm the condition.

People with psoriasis typically have thicker plaques and dry scaling on their skin. In some cases, genetic testing might be needed to make a definitive diagnosis. If you're experiencing joint pain along with skin symptoms, your doctor might recommend additional testing for psoriatic arthritis (PsA). This could include:

• Physical examination
• Blood tests to measure inflammation levels
• Imaging tests like X-rays, CT scans, or MRI
• Referral to a rheumatologist for specialized evaluation

Around 30% of people with psoriasis develop PsA, so it's important to monitor for these symptoms.

September 16, 2025

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