Ferritin is a molecule that stores iron and transports it to where it's needed. It's also involved in infections, inflammation, and cancer. High ferritin levels are common in chronic inflammation conditions like obesity, metabolic syndrome, and diabetes. Alcohol intake and genetics (specifically the condition hemochromatosis) can also cause elevated ferritin levels. Ferritin levels rise in a variety of inflammatory conditions, including autoimmune disorders, infections, and cancer, reflecting increased body iron stores that can't be used for red blood cell production.