Diagnosis
A physician often can diagnose ichthyosis by looking at the skin. A family history is very useful. In some cases, a skin biopsy is done to help to confirm the diagnosis. In a biopsy, a small piece of skin is removed and examined under a microscope. In some instances, genetic testing may be helpful in making a diagnosis. Diabetes has not been linked to acquired ichthyosis or ichthyosis vulgaris.
Ichthyosis is not more or less common in any ethnic group. As of now, there is no way to prevent ichthyosis since it is often of a genetic nature.
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