Diagnosis of Psoriasis
Physical examination. Psoriasis is mainly diagnosed through a physical exam of the patient. This involves an examination of the naked skin, as lesions may appear in places that are as hard to see as the genitals, armpits, axillary folds, intergluteal cleft, soles of the feet, and scalp. Where there is doubt, it may be necessary to do a skin biopsy.
Complete joint examination. If a patient presents joint pain, this must be evaluated by a rheumatologist who should perform a full joint examination.
Tests for diagnosing Psoriasis
Physical examination. Psoriasis is diagnosed through the detection of lesions in the skin and nails, it is necessary to physically examine the patient. The form of the lesions and their location determine the type and severity of the psoriasis. There are several scales for assessing the severity of the disease that are useful for evaluating the evolution of the disease and treatment response.
Skin biopsy. Some cases of psoriasis may raise doubts in the doctor as they can have similar characteristics to other skin diseases, so a skin biopsy may be required.
Analysis. Although there is no blood test for diagnosing psoriasis, an analysis can be carried out, where a systemic treatment is considered, to verify that there are no contraindications. Blood tests may also be undertaken during treatment to check that there are no adverse effects to the medication recommended.
Substantiated information by:
Published: 22 February 2019
Updated: 22 February 2019
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