Superoxide dismutase is a free radical scavenger that scavenges superoxide anion radicals, which, by peroxidizing lipids, can cause aging in the body, accelerate tissue cell apoptosis and may cause tumors, autoimmune diseases, inflammation and other pathologies. Clinical tests for superoxide dismutase, if the value is lower than normal, may indicate viral myocarditis, pneumonia, anemia, hemolytic diseases, diabetes, etc. If the superoxide dismutase assay results exceed the normal range, it may indicate a tumor, especially in patients with liver cancer, where the superoxide dismutase values are significantly elevated. There are also patients with other diseases such as hypertension and acute myocardial infarction, and the laboratory results of superoxide dismutase may also exceed the normal value.