(1) dietary irregularities, improper feeding families and lack of feeding knowledge, overindulgence in children, one-sided pursuit of highly nutritious food, purposely give children to eat more sweet, fried, fatty, sticky, fried and other foods, or indiscriminately take tonic, tonic. The quality and quantity of the diet exceeds the tolerance ability of the child’s spleen and stomach, and over time, it will damage the spleen and stomach, resulting in anorexia. Some parents also do not discipline their children, live irregularly, eat irregularly, crave snacks, and have a partial diet, either hungry or full, which can also damage the spleen and stomach, causing the absorption and transportation functions to diminish, resulting in anorexia. (2) Spleen and stomach are damaged due to prolonged illness. Children often have insufficient spleen and are not strong in transporting and transforming. Children who often suffer from pneumonia, diarrhea and other diseases have their spleen and stomach damaged at the time of illness. If the diet and medication are properly regulated during the recovery phase, the child can return to a normal diet. If not properly regulated, they will be left with a long-term aversion to eating after the original disease has healed. (3) Congenital deficiencies, acquired disorders Children who are born thin and weak are born with deficiencies, and their spleen and stomach are weaker than other children. After birth, these children have higher requirements in terms of feeding and nursing in order for them to gradually catch up with the development level of normal children of the same age. If not properly nourished, these children will be long-term gastric inability, loss of appetite, and even aversion to eating. (4) summer dampness trapped, spleen and stomach and loss of summer climate hot, rainy moisture steaming, high temperature and wet, will affect the spleen and stomach intake, transport and transformation functions, therefore, every summer, many children have reduced food. However, in general, children’s appetite can return to normal after the cool of autumn. If it does not return even after the cool of the day, it is anorexia. (5) Environmental changes, thinking hurts the spleen and stomach Mental and emotional effects also have an impact on the function of the spleen and stomach, which is what is meant by “thinking hurts the spleen” in the Book of Internal Medicine. Changes in the child’s environment and the child’s lack of desire to eat at the beginning of the nursery are all of this type. Some children are forced to eat by their parents for a long time, or they are too much in charge of their lives and studies, making them feel burdened, which may lead to a decrease in appetite and anorexia.