Eisen-Ferritin Selbsttest: what are common causes?

Common causes of abnormal iron/ferritin levels in self-tests include: iron deficiency (due to inadequate intake, blood loss, malabsorption), iron overload (e.g., hereditary hemochromatosis, frequent transfusions), and inflammatory conditions (ferritin is an acute-phase reactant). Chronic diseases, liver dysfunction, or malignancies can also elevate ferritin. A self-test provides only a snapshot; follow-up with a physician (including transferrin saturation, CRP, complete blood count) is essential. Evidence is based on clinical practice and observational studies. Caveat: ferritin can be falsely elevated during inflammation, even in iron deficiency. Genetic factors (e.g., HFE mutations) are not always covered by self-tests but are relevant for iron overload. Overall, the test is a screening tool, not a diagnostic.