1, the specificity of the occult blood test is not strong, the influence of many factors, it is not necessary for routine monitoring. 2, the stool mucous membrane described as “intestinal mucosa detachment, damage” is too vague, inaccurate. Our pathological examination did not find any cellular structural material. 3, the mother mainly avoided milk and eggs (in fact, from the perspective of digestion and absorption and resynthesis process can not argue the necessity), not to mention “the more taboos the safer”. 4, allergic reactions, both related to allergens, but also with the baby’s internal environmental state, is a dynamic change, genetic and environmental, physiological and pathological unity. Allergic constitution is a concept used in Chinese medicine in recent years, Western medicine also used, the definition of its connotation has not been studied in depth, the body has both genetic but also has a variable side, the infant stage can not be infinitely exaggerated. 5, the standard of normal growth and development: from horizontal (reference value) and vertical (individual dynamics), group patterns and individual special two considerations, because each baby congenital genetic, acquired environment and feeding adaptation response is different, to avoid excessive pursuit of standards.