G6PD refers to glucose-6-phosphate dehydrogenase and its main use is to assist in the metabolism of glucose. The G6PD test, however, refers to the glucose-6-phosphate dehydrogenase activity test, which is performed to rule out G6PD-deficient diseases, namely glucose hexaphosphate dehydrogenase deficiency, also known as serpentine disease. G6PD deficiency is caused by genetic mutations and may have no special manifestations in daily life, but acute hemolytic symptoms may occur after exposure to sulfa drugs, aspirin drugs, infections and triggering factors such as fava beans or their products G6PD deficiency disease is a hereditary hemolytic disease, and once diagnosed, early and standardized treatment can help reduce the occurrence of complications. In addition, people with a family history of hemolysis should avoid foods and drugs that cause hemolysis, such as fava beans and fava bean products, sulfonamides, anti-malarial drugs, furan drugs, etc. Also, be careful with aspirin, chloramphenicol and other drugs. For women with genetic history, genetic counseling should be conducted and preconception checkups should be done to avoid predisposing factors, and screening should be done after the birth of newborns to prevent the disease once it is diagnosed.