Ferritin is a complex of ferritin and trivalent iron ions, and the normal range of ferritin is 15-200μg/L for adult males and 12-150μg/L for adult females.Serum ferritin decreases in iron-deficiency anemia, prolonged diarrhea, and malnutrition, and serum ferritin decreases markedly in large amounts after blood loss. Increased serum ferritin can be seen in the body to increase the storage of iron, such as primary hemochromatosis, long-term large amounts of red blood cell transfusion of patients, when the body has inflammation, such as a variety of infections, serum ferritin synthesis is increased, the serum ferritin concentration will also increase. Neoplastic diseases, leukemia, hyperthyroidism, etc., will also have increased serum ferritin.

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