Your general practitioner (GP) or a dermatologist, a doctor who specializes in skin conditions, can normally diagnose skin psoriasis based on its appearance alone. Occasionally, they may need to take a small sample of skin to confirm the exact type of psoriasis. Learn more about diagnosing psoriasis in this section.
 NHS. Overview Psoriasis. 2018. Available at: https://www.nhs.uk/conditions/psoriasis/. Last accessed June 2019