How is it diagnosed?

Your GP may suspect bullous pemphigoid just by looking at your skin. The diagnosis is then confirmed by taking a small sample of your affected skin (biopsy) and sending it to a laboratory to be inspected to see if the top layers of skin have separated. Special staining (immunofluorescence) may be used to show up the antibodies, and a blood sample may be taken and checked for the presence of pemphigoid antibodies.
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