Last updated: March 23, 2022

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Hemochromatosis is a condition that leads to abnormal iron deposition in specific organs. There are two main types: primary (hereditary) and secondary (e.g., transfusion-related). The most common form is hereditary autosomal recessive hemochromatosis type 1, which is caused by an underlying genetic defect that results in partially uninhibited absorption of iron in the small intestine. Hemochromatosis is mostly asymptomatic but can become symptomatic, usually between the third and fifth decade of life, when poisonous levels of iron have had time to accumulate in the body. Symptoms include fatigue, hyperpigmentation, diabetes mellitus ("bronze diabetes"), and arthralgia. The deposits may lead to various organ diseases, the most typical being the development of liver cirrhosis, which is accompanied by an increased risk of hepatocellular carcinoma (HCC). Serum ferritin and transferrin saturation levels are typically elevated. Molecular genetic testing or a liver biopsy may be used to confirm the diagnosis. Treatment primarily consists of repeated phlebotomy to reduce iron levels. In addition, dietary changes and drug therapy (chelating agents such as deferoxamine) may be used to influence the amount of iron in the body.

  • Prevalence: the most frequent genetic disease in the white population
  • Age of onset: individuals > 40 years


Epidemiological data refers to the US, unless otherwise specified.

Primary (hereditary) hemochromatosis

HLA A3 as in HA3mochromatosis!

Secondary hemochromatosis


Hemochromatosis type I

In hereditary hemochromatosis, decreased hepcidin leads to iron overload. In secondary hemochromatosis, iron overload leads to increased hepcidin immediately after a blood transfusion (unless liver fibrosis or cirrhosis, which leads to decreased hepcidin synthesis, is present).


In combination with diabetes mellitus, bronze-colored skin pigmentation is also referred to as "bronze diabetes.”

As a result of its subtle and primarily asymptomatic course, hemochromatosis is often an incidental diagnosis first detected during routine checks or diagnosed only once signs of advanced organ involvement become apparent.

Laboratory tests

Genetic tests


Liver biopsy


Primary hemochromatosis

Drugs that delete iron (Fe) in hemochromatosis: deFeroxamine, deFerasirox, deFeriprone.

Secondary hemochromatosis


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