There are 70 million people suffering from silkworm diseases in China. According to the relevant public information, 70% of patients are under 3 years old and 90% are male. Adult patients are relatively rare, but there are also a few cases that first occur in middle age or old age. There are about 70 million people with silkworm disease in China. Silkworm bean disease is a type of glucose -6- phosphate dehydrogenase (G6PD) deficiency, which is characterized by hemolytic anemia caused by eating broad beans. The specific mechanism of hemolysis is unknown. Only a few people with G6PD deficiency in the same area get sick, and it doesn't happen every year after eating broad beans.