Babies with green stools can be seen in physiological phenomena, pathological conditions (such as lactose intolerance), whether the need to change the milk powder needs to be analyzed specifically to determine, such as the existence of lactose intolerance and affect the weight gain, you need to change the milk powder. 1. Physiological phenomenon: for babies, especially breastfed babies, the number of times a day to relieve stools can be more, can show dilute stools, with green, usually this kind of baby’s spirit, appetite, growth and development is normal, belong to the normal physiological phenomenon, do not need to change the milk powder. 2. Pathological conditions: (1) lactose intolerance: due to a variety of reasons lead to the baby’s intestinal lactase enzyme deficiency, eating lactose-containing dairy products can be more frequent stools, green stools phenomenon, serious cases can occur weight gain, such babies can be orally lactase, or under the guidance of a physician to replace the lactose-free milk powder treatment. (2) milk protein allergy: this kind of baby can also appear the above phenomenon, more diarrhea, some may appear blood stools, this kind of baby need to use the depth of hydrolyzed protein milk powder under the guidance of a physician when necessary. It is recommended that babies with green stools should consult a doctor in time, and be guided by a specialist to intervene. The above drugs should be used in accordance with medical advice.