Two months baby green hard lumps in the stool, if caused by cold, should pay attention to warmth; if caused by indigestion, should be reasonable feeding; if caused by formula feeding, it is recommended to change the milk powder. 1. Cold: If the baby is cold, it may lead to green hard lumps in the stool, parents do not have to worry too much, pay attention to the baby to keep warm, in the process of breastfeeding to pay attention to the temperature can not be too low. 2. indigestion: two months the baby’s digestive function is not yet perfect, if not fed properly, there may be a small green hard lumps in the stool, it is recommended that parents combined with the baby’s specific situation, appropriate to reduce the number of times and the amount of feedings, at the same time can be in the doctor’s guidance, give the child to take medication to regulate the stomach and intestines, such as probiotics. 3. formula feeding: formula-fed babies may have different stool properties due to the different composition of the milk powder. If the iron content in the milk powder is high, there may be iron can not be fully absorbed, which in turn manifests itself in small green hard lumps in the stool, so it is recommended that parents combined with the baby’s physical condition and growth stage, choose the appropriate milk powder. In conclusion, the appearance of green hard lumps in the stools of two-month-old babies may be related to cold, indigestion and formula feeding, and need to be treated symptomatically. Parents should pay attention to the amount and temperature of breastfeeding to avoid the impact on the baby’s gastrointestinal function. At the same time, parents of formula-fed babies should also pay attention to choosing the right age of the milk powder, in order to better adapt to the baby’s gastrointestinal function.