What causes high ferritin levels?

High ferritin levels can be caused by various factors, including iron overload conditions such as hemochromatosis or excessive iron supplementation. Inflammation or chronic diseases, such as liver disease, infections, or autoimmune disorders, can also elevate ferritin as it acts as an acute phase reactant. Additionally, certain malignancies may lead to increased ferritin levels. It's important to consult a healthcare provider for accurate diagnosis and management if elevated ferritin is detected.