Etiology and pathogenesis of nutritional iron deficiency anemia in children.

A: The etiology and pathogenesis of TCM are closely related to heart, liver, spleen and kidney function, and nutritional anemia in children is most closely related to spleen and stomach function. Spleen is the acquired foundation and the main source of qi and blood biochemistry. Children's spleen is often deficient and their spleen and stomach transport function is weak, but they need nutrients urgently, such as improper feeding, partial eating, insufficient milk, or failure to add complementary food in time, which affects the absorption and intake of iron and nutrients; Or because of serious illness, chronic diseases, or parasites, the spleen and stomach function is abnormal, the subtle can not be transported, and the qi, blood and body fluid can not be transformed, leading to qi and blood weakness and anemia.