A ferritin level above 200 ng/mL in men or above 150 ng/mL in women is generally considered high. Ferritin is a protein that stores iron inside your cells, and a blood test measuring it is one of the most common ways to assess your body’s iron status. But here’s what surprises many people: a high ferritin result usually reflects inflammation or liver issues, not excess iron.
Normal Ferritin Ranges by Age and Sex
Ferritin levels vary quite a bit depending on who you are. The standard reference ranges are:
- Adult men: 30 to 566 ng/mL
- Adult women: 15 to 205 ng/mL
- Children (6 months to 15 years): 12 to 140 ng/mL
- Infants under 6 months: up to 650 ng/mL
These ranges are wide, which is part of what makes ferritin tricky to interpret. A level of 400 ng/mL in a man falls within the technical reference range but could still warrant investigation depending on the context. What matters is your full clinical picture, not the number in isolation.
Why High Ferritin Often Isn’t About Iron
Ferritin doubles as what doctors call an “acute phase reactant,” meaning your body pumps out more of it whenever there’s inflammation, infection, or tissue damage. This is the most common reason for an elevated result. Conditions that raise ferritin without actually increasing your iron stores include:
- Liver disease, especially fatty liver (non-alcoholic steatohepatitis)
- Chronic inflammatory conditions like rheumatoid arthritis
- Infections, both acute and chronic
- Overactive thyroid (hyperthyroidism)
- Metabolic syndrome
- Heavy alcohol use
- Certain cancers, including leukemia and lymphoma
In all of these situations, damaged cells release their ferritin into the bloodstream. Your iron stores may be perfectly normal, but your ferritin reading looks alarming. This is why a single ferritin number, without additional tests, doesn’t tell the whole story.
When High Ferritin Does Mean Iron Overload
True iron overload is less common but more dangerous over time. The main cause is hereditary hemochromatosis, a genetic condition where your body absorbs too much iron from food. It’s linked to mutations in a gene called HFE, and it’s one of the most common inherited disorders in people of Northern European descent.
To figure out whether your high ferritin reflects actual iron buildup, doctors typically order a transferrin saturation test. This measures what percentage of your blood’s iron-carrying protein is loaded with iron. In hemochromatosis, transferrin saturation often exceeds 60%, and in advanced cases it can climb above 90%. If your transferrin saturation is normal, your elevated ferritin is more likely driven by inflammation or liver issues. If saturation is high, genetic testing for HFE mutations is the next step.
Other causes of genuine iron overload include repeated blood transfusions, taking too many iron supplements, and certain blood disorders like thalassemia and sideroblastic anemia.
Symptoms of Iron Overload
The frustrating thing about iron overload is that early symptoms are vague. Fatigue, weakness, joint pain, and abdominal discomfort all overlap with dozens of other conditions. Many people have elevated ferritin for years before anyone connects the dots.
As iron continues to accumulate, symptoms become more specific. Men may notice decreased sex drive or erectile dysfunction. Women may experience missed periods. Skin can take on a bronze or grayish tone, and joint pain tends to concentrate in the hands. These later-stage signs point to iron depositing in organs where it doesn’t belong.
Left untreated over years, iron overload can damage the liver, heart, and pancreas. A ferritin level above 1,000 ng/mL significantly increases the risk of liver cirrhosis. Advanced cases can lead to heart rhythm problems, heart failure, diabetes (sometimes called “bronze diabetes” when it appears alongside skin discoloration), and liver failure.
Very High Ferritin Levels
Levels above 3,000 ng/mL are considered extreme and typically show up in people who are already seriously ill. They can result from severe liver disease, overwhelming infection (sepsis), kidney failure, transfusion-related iron overload, or a rare inflammatory condition called hemophagocytic syndrome.
When ferritin exceeds 10,000 ng/mL, doctors look for acute hepatitis, certain blood cancers, and a rare autoimmune condition called adult-onset Still disease. At these levels, you’re almost always already in a hospital setting, and the ferritin result is one piece of a much larger diagnostic puzzle.
How Doctors Lower Ferritin
If your high ferritin turns out to be driven by inflammation, liver disease, or another underlying condition, the treatment focuses on that root cause. Bring the inflammation down, and ferritin typically follows.
For true iron overload, the standard treatment is therapeutic phlebotomy, which is essentially a scheduled blood draw. Each session removes about 500 mL of blood (roughly a pint), which forces your body to use stored iron to make new red blood cells. In the initial phase, this happens weekly or every two weeks. Your blood counts are checked before each session to make sure you’re tolerating the draws.
The goal is to bring ferritin down to between 50 and 100 ng/mL. Reaching that target can take months of regular phlebotomies depending on how high your levels started. Once you’re in range, you shift to maintenance, with sessions spaced further apart to prevent iron from building back up. Ferritin is rechecked roughly every 10 to 12 sessions to track progress.
For people who can’t tolerate phlebotomy, medications that bind to iron and help your body excrete it are an alternative, though blood removal remains the first-line approach for most patients.
What to Make of a Mildly Elevated Result
If your ferritin comes back slightly above the reference range, it’s worth investigating but rarely an emergency. A common next step is checking transferrin saturation along with liver enzymes and markers of inflammation (like C-reactive protein). These additional tests help sort out whether you’re dealing with iron overload, an inflammatory condition, or liver-related ferritin release.
Context matters too. A ferritin of 300 ng/mL in a man with obesity and fatty liver has a very different meaning than the same number in a lean 25-year-old with joint pain. Repeat testing after a few weeks can also help, since temporary infections or injuries can spike ferritin and then resolve on their own. One elevated reading is a starting point for investigation, not a diagnosis.