Bronze diabetes, also known as hemochromatosis, affects about 1 in 300 people in the United States. It causes excessive iron accumulation in the body, leading to various health complications. When iron builds up excessively, it can damage vital organs. Unfortunately, many people are unaware of this condition and its potential consequences, which often leads to delayed diagnosis and improper management.

In this article, you will learn about the causes, symptoms, prevention, and treatments for bronze diabetes. Understanding this condition is crucial for early detection and effective management.

Key Takeaways

  • Bronze diabetes, or hemochromatosis, is a genetic disorder characterized by excessive iron accumulation in the body, leading to various health complications. It’s relatively common, affecting about 1 in 300 people in the United States.
  • Hemochromatosis can be primary, caused by genetic mutations, or secondary, resulting from other medical conditions or treatments. Mutations in the HFE gene lead to increased iron absorption, storing excess iron in organs like the liver, pancreas, and skin.
  • The term “bronze diabetes” originates from the nineteenth century due to its association with skin pigmentation changes. Significant contributions from physicians and pathologists over time have improved understanding and diagnostic methods, leading to better management.
  • Symptoms of bronze diabetes typically manifest after the age of 40 and include skin pigmentation changes, fatigue, joint pain, loss of body hair, and other systemic issues like erectile dysfunction and menstrual irregularities.
  • Diagnosis involves various tests such as DNA blood tests to identify genetic mutations, measuring serum ferritin levels to assess iron storage, and sometimes liver biopsy to evaluate organ damage.
  • Treatment primarily focuses on reducing iron levels through methods like phlebotomy (blood removal) or chelation therapy. Preventive measures include regular blood tests, liver biopsy for cirrhosis assessment, dietary changes, and avoiding alcohol consumption and infections. Early detection and intervention are crucial for preventing complications and improving overall health outcomes.

What is Bronze Diabetes?

: an illustration of a healthy liver and an iron overload liver

Bronze diabetes, also known as hemochromatosis, is a genetic disorder characterized by the excessive accumulation of iron in the body. This condition occurs due to a faulty gene that causes the body to absorb more iron than it needs from food, leading to its storage in various organs. There are two main types of hemochromatosis: primary and secondary. Primary hemochromatosis is caused by genetic mutations, while secondary hemochromatosis may develop due to other medical conditions or treatments. 

Studies suggest that approximately 1 in 200-300 individuals may carry the gene mutation associated with hemochromatosis, making it a relatively common genetic disorder. Over time, the excess iron stored in organs such as the liver, pancreas, and skin can lead to serious complications. For instance, it can cause liver cirrhosis, pancreatic damage resulting in diabetes mellitus, and skin pigmentation changes, giving rise to the term “bronze diabetes.”

Did you know

Bronze diabetes is so named due to the bronze-like skin color developed from excess iron deposition.

History of Bronze Diabetes

The term “bronze diabetes” originated in the nineteenth century and was coined due to its association with skin pigmentation changes. Physicians noticed that individuals with hemochromatosis often exhibited a discoloration of their skin, which led to the adoption of this term. Over time, researchers and scientists made significant contributions to understanding the disease. 

French physicians in the mid-19th century reported cases of hemochromatosis and described symptoms such as cirrhosis and pigmentation changes. German pathologists like Rudolph Virchow and Friedrich von Recklinghausen played crucial roles in identifying iron deposits in tissues and linking them to the condition. Subsequent advancements in diagnostic methods, such as the discovery of the Prussian blue reaction and iron staining techniques, furthered understanding. 

Additionally, identifying hepcidin, a peptide involved in iron regulation, sheds light on the underlying mechanisms of hemochromatosis. These developments paved the way for improved diagnostic methods and treatment approaches over time, leading to better management of the condition and its associated complications.

Signs and Symptoms

A woman feeling fatigue and exhaustion

Recognizing the signs of bronze diabetes can be challenging due to the gradual onset of symptoms. The symptoms of hemochromatosis typically appear after the age of 40, with signs manifesting gradually over time. Some common symptoms associated with bronze diabetes include:

  • Unexplained darkening or bronzing of the skin
  • A persistent feeling of fatigue and exhaustion, with a lack of energy
  • Pain in the joints, especially in the fingers

Other symptoms may include 

  • Loss of body hair
  • Erectile dysfunction
  • Missed periods without any other issues
  • Unexplained increase in thirst and urination

It’s essential to pay attention to these signs, particularly skin pigmentation changes, fatigue, and joint pain, as they could indicate underlying health concerns like hemochromatosis. Early recognition of these symptoms can lead to timely diagnosis and management, helping to prevent complications associated with bronze diabetes.

Causes of Bronze Diabetes

The main cause of bronze diabetes is genetic mutations that lead to iron overload in the body. These mutations affect the HFE gene, which regulates iron absorption. When this gene is faulty, the body absorbs more iron from food than it needs, producing excessive accumulation in organs like the liver, pancreas, and skin. 

Moreover, individuals with mutated genes may not necessarily develop hemochromatosis themselves, but they can pass on the faulty gene to their offspring, increasing the risk of inheriting the condition. This genetic predisposition to hemochromatosis underscores the importance of genetic testing, especially for individuals with a family history of the disease, to identify and manage the condition early on.


A hand holding a small container with a hemochromatosis gene test label

Diagnosis of bronze diabetes typically involves several diagnostic tests to confirm the presence of the condition. These tests may include a DNA blood test to identify any genetic mutations associated with hemochromatosis, as well as measuring serum ferritin levels to assess iron storage in the body. Early detection through these tests is crucial as it allows for timely intervention and monitoring to prevent complications. 

In some cases, a liver biopsy may be recommended to evaluate the extent of organ damage caused by excess iron accumulation. This diagnostic tool provides valuable information about the severity of the condition and helps guide treatment decisions. Regular monitoring and early detection are essential for managing bronze diabetes effectively and minimizing the risk of complications associated with the disease.

Bronze Diabetes Treatment

A phlebotomy technician applying a tourniquet to a patient

Treatment for bronze diabetes primarily focuses on reducing iron levels in the body to prevent further complications. The two main treatment methods are phlebotomy and chelation therapy. Phlebotomy involves the removal of iron-rich blood from the body, effectively reducing iron levels over time. This procedure is typically performed regularly until iron levels normalize. On the other hand, chelation therapy involves using medications like Deferasirox to bind with excess iron in the bloodstream and remove it from the body. 

While chelation therapy is not clinically trialed specifically for hemochromatosis, it may be prescribed off-label in certain cases where phlebotomy is not feasible. It’s important to note that effective treatment of hemochromatosis may potentially reverse the development of diabetes associated with the condition. Proper management of iron levels through these treatment options can help prevent complications and improve overall health outcomes for individuals with bronze diabetes.

Prevention and Maintenance

To prevent complications from bronze diabetes, the following steps can be taken:

  • Regularly scheduled blood removal is the most effective way to lower the amount of iron in the body.
  • Annual blood tests should be conducted to check iron levels.
  • A liver biopsy can be done to check for cirrhosis.
  • If blood removal is not possible, ironlood removal is not possible, iron chd. This therapy involves medicine taken orally or injected to lower iron levels.
  • Dietary changes, such as avoiding multivitamins, vitamin C supplements, and iron supplements, can increase iron levels in the body.
  • Avoid alcohol use, as it increases the risk of liver damage.
  • Take steps to prevent infections, including avoiding uncooked fish and shellfish and getting recommended vaccinations, such as those against hepatitis A and B.


In conclusion, bronze diabetes is a genetic disorder characterized by excessive iron storage in the body, leading to various complications such as liver damage, diabetes mellitus, and skin pigmentation. Despite being a common genetic disorder, its diagnosis remains challenging due to a lack of awareness. However, advancements in medical science have enabled early detection through DNA testing and monitoring of iron levels in the body. 

Treatment options include phlebotomy to remove excess iron or chelation therapy, although the latter is considered off-label. Timely intervention can help prevent irreversible organ damage and complications associated with bronze diabetes, highlighting the importance of proactive healthcare and genetic screening, especially for individuals with a family history of the condition.

FAQs About Bronze Diabetes (Hemochromatosis)

Can bronze diabetes be reversed?

Phlebotomy, a treatment method involving blood removal to manage hemochromatosis, shows promise in potentially reversing diabetes. This treatment effectively regulates iron levels in the body. Phlebotomy treatment typically involves an initial phase to reduce iron levels and a long-term maintenance phase.

Can hemochromatosis lead to type 1 diabetes?

Around 50% of individuals diagnosed with hemochromatosis may develop either type 1 or type 2 diabetes mellitus. This occurs due to specific damage to beta cells caused by iron overload, impairing insulin synthesis, release, and insulin resistance.

Can hemochromatosis lead to type 2 diabetes?

The excess iron accumulation in individuals with hemochromatosis often manifests as type 2 diabetes. Clinical evidence suggests that a significant proportion (53%-82%) of hemochromatosis patients develop type 2 diabetes, highlighting a strong association between excess iron stores and the development of diabetes.

How does hemochromatosis affect A1c levels?

Hemochromatosis can cause anemia or hemolysis, leading to falsely lowered A1c levels in affected patients due to reduced erythrocyte lifespan.

How is bronze diabetes tested?

Hemochromatosis can be diagnosed through a transferrin saturation or serum ferritin blood test. In some cases, a DNA blood test may be necessary to detect the presence of a faulty HFE gene. A liver biopsy may also be performed to assess any potential liver damage.

How to diagnose hemochromatosis?

Doctors typically diagnose hemochromatosis based on blood test results. They may suspect the condition based on medical and family history and a physical examination before confirming it with blood tests.


Centers for Disease Control and Prevention. (n.d.). Hereditary hemochromatosis. Retrieved from (n.d.). Hemochromatosis and diabetes. Retrieved from

International Journal of Applied and Basic Medical Research. (2018). Primary hemochromatosis with type 2 diabetes mellitus and cirrhosis: A case report. Retrieved from

Jiang, R., Manson, J. E., Meigs, J. B., Ma, J., Rifai, N., & Hu, F. B. (2004). Body iron stores in relation to risk of type 2 diabetes in apparently healthy women. JAMA, 291(6), 711-717.