This guide explains the rarer form of non-HFE genetic haemochromatosis, called Ferroportin Disease. It's also known as type 4 or SLC40A1-related GH.

Although this form of the condition is considered rare, increasing levels of genetic testing for this variant are revealing more people at risk of Ferroportin Disease.

We gratefully acknowledge the support of the Batchworth Trust in developing this guide.

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Type 4 Non-HFE Genetic Haemochromatosis

Errata; there is an error on the diagram on page 10 where the mutation from the affected parent should be pointing to the mutated genes rather than healthy (unmutated) gene.