How is psoriasis diagnosed?

    Written by:
    Last Updated: May 16, 2025

    Psoriasis is diagnosed primarily through a clinical evaluation of the rash, symptoms, and ruling out of other similar conditions by healthcare professionals. This process includes obtaining a clinical history and conducting a thorough skin examination.

    The diagnosis is largely clinical, based on the appearance of the rash and associated symptoms. A healthcare professional must first rule out other diseases that may cause similar symptoms. During a visit with a healthcare professional, a clinical history is acquired and a comprehensive skin evaluation is done.[1]