Hemochromatosis

Overview

Hemochromatosis (pronounced hee-muh-kroh-muh-TOH-sis) is a condition in which your body absorbs and stores too much iron from the food you eat. Over time, the extra iron builds up in organs such as the liver, heart, and pancreas, where it can cause damage if not treated. It is most often an inherited condition, meaning it runs in families.

Hemochromatosis is considered common among certain populations. Around 1 in 10 people of Northern European ancestry carry one altered gene, and about 1 in 200 carry two altered genes and are at risk of developing iron overload. However, not everyone with the genes will go on to have serious problems.

Hemochromatosis most often affects adults of Northern European descent, particularly those with Celtic, British, or Scandinavian ancestors. It affects more men than women, and symptoms tend to start earlier in men, often between ages 30 and 50. Women are often protected until after menopause because they lose iron through menstruation and pregnancy, so symptoms may not appear until later.

Symptoms

Common symptoms

• Persistent tiredness or fatigue
• Joint pain, especially in the knuckles or hands
• Weakness or lack of energy
• Abdominal or belly pain
• A gray, bronze, or tanned skin color without sun exposure
• Loss of sex drive or erectile dysfunction
• Irregular periods or early menopause in women
• High blood sugar levels or diabetes-like symptoms

Symptoms in children

• Hemochromatosis is very rare in children.
• A severe form called juvenile hemochromatosis can affect teenagers and cause fatigue, heart problems, and hormone changes, but this is extremely uncommon.
• If a child has immediate family members with hemochromatosis, a doctor may suggest a blood test to check iron levels, but usually no treatment is needed at a young age.

Symptoms in older adults

• In older adults, symptoms may be more noticeable because iron has built up over many years.
• Older adults might experience more joint pain, liver problems, or heart issues due to long-term iron overload.
• Some older adults may be diagnosed after routine blood tests for other conditions, even if they have no symptoms.

Causes

Main causes

• Hereditary hemochromatosis is caused by a change (mutation) in a gene called HFE, most often the C282Y mutation. This gene helps control how much iron your body absorbs from food.
• When you inherit two copies of the altered gene (one from each parent), your body absorbs more iron than it needs and cannot easily get rid of the extra.
• A less common form called secondary hemochromatosis can develop from repeated blood transfusions, certain blood disorders, or long-term liver disease, rather than from genetics.

Risk factors

• Having one or both parents with the altered HFE gene
• Being of Northern European descent
• Being male (men develop symptoms more often and earlier than women)
• Drinking large amounts of alcohol, which makes iron damage worse
• Having a family history of hemochromatosis or iron overload

When to see a doctor

See a doctor urgently if:

• If you have symptoms such as constant tiredness, joint pain, belly pain, or a change in skin color, make an appointment with your doctor as soon as possible.
• If a parent or sibling has been diagnosed with hemochromatosis, ask about having a blood test even if you feel well.

Book a routine appointment if:

• You can mention hemochromatosis during any routine health checkup, especially if you have risk factors like a family history.
• If you have diabetes, liver disease, or heart problems, talk to your doctor about whether iron overload could be a factor.

Diagnosis

Doctors diagnose hemochromatosis starting with a full medical history, a physical exam, and a discussion about any family history. If the doctor suspects iron overload, they will order simple blood tests to measure iron levels in your body. If these tests are abnormal, further tests may be done to confirm the diagnosis and check for organ damage.

Tests that may be done

• Blood tests: These measure serum ferritin and transferrin saturation. Ferritin is a protein that stores iron, and transferrin is a protein that carries iron in the blood. High levels of both suggest too much iron.
• Genetic test: A blood sample is checked for the HFE gene changes that cause hereditary hemochromatosis.
• Liver biopsy (in some cases): A tiny sample of liver tissue is removed with a needle to look for iron buildup or scarring. This is less common now because MRI scans can also check liver iron.
• MRI (magnetic resonance imaging): A special scan can measure iron levels in the liver without needing a biopsy.

What to expect at your appointment

You will likely have a blood test first, which is quick and simple. If the results suggest hemochromatosis, your doctor may refer you to a specialist such as a gastroenterologist or liver specialist. The specialist may recommend additional scans or a liver biopsy to understand more. You will not need any urgent action the same day; diagnosis is usually done step by step.

Treatment

The goal of treatment is to remove extra iron from your body and then keep iron levels normal for the rest of your life. The main treatment is a simple procedure called phlebotomy, which means taking blood from a vein, similar to giving blood at a donor center. This is done regularly until iron levels are normal, and then every few months to keep them in a healthy range.

Self-care at home

• Do not take iron supplements or multivitamins that contain iron unless your doctor tells you to.
• Avoid alcohol, especially if you have liver damage, because alcohol worsens iron-related injury.
• Talk to your doctor before taking vitamin C supplements, as vitamin C can increase iron absorption.
• Limit red meat, liver, and foods that are fortified with iron in your diet.
• Attend your scheduled phlebotomy appointments and blood tests.

Medical treatments

For people who cannot have regular phlebotomies, such as those with severe anemia or difficulty with blood removal, doctors may prescribe medicines that bind to iron and help remove it from the body through urine or stool. These medicines are called iron chelators. They are used only when phlebotomy is not possible or safe. The choice of treatment, dose, and schedule is always decided by a specialist doctor.

When is surgery considered?

Surgery is rarely needed for hemochromatosis itself. However, if severe iron overload has led to advanced liver scarring (cirrhosis) or liver cancer, a liver transplant may be considered. This is a major operation and is only done when other treatments cannot prevent or fix serious liver failure.

Living with this condition

Living with hemochromatosis involves keeping a regular routine of blood tests and phlebotomy appointments. Many people compare this to a regular blood donation schedule. Between treatments, you can live normally, work, and enjoy activities. If you have symptoms like joint pain or tiredness, they often improve after iron levels are brought down.

Lifestyle tips

• Stick to a balanced, healthy diet with a variety of foods.
• Try gentle exercise like walking, swimming, or cycling to keep your joints moving and your heart healthy.
• Drink alcohol in moderation, or better yet, not at all if your doctor advises against it.
• Tell your friends and family about your condition so they can support you.
• Keep a record of your blood iron results and treatment dates so you can share them with healthcare providers.

Diet and exercise

You do not need a very strict diet, but it helps to be mindful. Avoid iron-fortified cereals and breads, and limit red meat to a few times a week. Eat plenty of fruits, vegetables, whole grains, and lean proteins like fish or poultry. Avoid taking vitamin C with meals, because it makes iron easier to absorb. Regular exercise is safe and recommended; it supports your joints, heart, and mood.

Mental health and emotional wellbeing

Living with an inherited condition can feel worrying. You might feel anxious about your health or frustrated by the need for regular treatments. It is completely normal to have these feelings. Talking with your healthcare team, a counselor, or a mental health professional can help. Remember that hemochromatosis is treatable, and most people who receive regular care go on to live full and active lives.

Prevention

Hereditary hemochromatosis cannot be prevented, because it is inherited. But you can prevent the harmful effects of iron overload by catching it early. If you know you are at risk, regular blood tests and treatment can keep iron levels from ever reaching a dangerous level. Also, avoiding alcohol and not taking extra iron can help prevent further damage.

Vaccines

There is no vaccine for hemochromatosis. However, because the liver is often affected, it is important to protect it. Your doctor may recommend getting vaccinated against hepatitis A and hepatitis B, which are viruses that can cause liver inflammation and extra damage.

Screening programmes

If you have a close relative with hemochromatosis, it is wise to have a blood test to check your iron levels, even if you feel fine. This is a simple test that can catch the condition early, before organ damage happens. Family screening is often covered by public health services; ask your doctor about it.

Complications

If left untreated

• Liver damage, including cirrhosis (scarring of the liver) and an increased risk of liver cancer
• Heart problems, including an irregular heartbeat or heart failure
• Diabetes, because iron can damage the pancreas, which produces insulin
• Joint pain and arthritis, especially in the hands
• Hormone problems, such as low thyroid function or reduced sex hormones
• Bronze or gray skin color due to iron deposits in the skin

Long-term outlook

The outlook for hemochromatosis is very good when it is found early and treated regularly. With phlebotomy, most people can keep iron levels normal and avoid serious complications. Even if some organ damage has already occurred, treatment can stop further progression and can improve symptoms like fatigue and joint pain. Many people with treated hemochromatosis have a perfectly normal lifespan.

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