Ferritin is a soluble tissue protein that stores iron in the body. Ferritin can participate in iron storage as well as digestion to make iron absorption, and serum ferritin index can diagnose iron deficiency anemia, hemolytic anemia and liver cancer and other diseases. Serum ferritin contains trace amounts of ferritin, which is normally stable. Elevated serum ferritin is associated with certain diseases: 1. liver diseases, hepatocyte damage function decreases when suffering from liver diseases, and ferritin tissue release increases, such as liver necrosis, chronic liver disease, liver cirrhosis, liver tumors and other diseases are causes of high ferritin. 2. blood diseases, acute leukemia, hemolytic anemia, iron granulocytic anemia, Hodgkin’s disease 3, excessive iron load, such as repeated blood transfusions, inappropriate iron therapy, etc. also belong to the causes of high ferritin. since increased ferritin can be caused by a variety of reasons, its treatment should vary depending on the cause.