The skin may reflect signs of systemic diseases, useful for diagnosis, or suffer from a complication of disease or its treatment. Here are links to pages about the dermatological manifestations of non-infectious internal diseases: immune, autoimmune and rheumatic diseases; genetic, metabolic, endocrine and nutritional states; internal malignancy; haematological diseases; psychiatric states; and drug eruptions.
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DermNet NZ does not provide an online consultation service. If you have any concerns with your skin or its treatment, see a dermatologist for advice.