Ferritin is a commonly used clinical tumor marker. Elevated ferritin is mostly seen in malignant tumors such as hepatocellular carcinoma, but also in other benign diseases. 1. Hepatocellular carcinoma: the cancer cells of malignant tumors synthesize ferritin, which is released into the blood by rupture of the tumor cells, and the result of this test will be elevated, which is mostly seen in hepatocellular carcinoma. 2. Other diseases: for example, lung cancer, prostate cancer, acute leukemia, colon cancer, pancreatic cancer, etc. can also have elevated ferritin tumor marker, in addition, acute and chronic hepatitis, cirrhosis, chronic nephritis, nephrotic syndrome, etc. can also cause elevated ferritin, so this test result can not be used as the basis of malignant tumor. Patients with high tumor marker ferritin should actively seek medical attention, and patients should not self-medicate to avoid adverse results.