One-month-old babies with green stools may be related to indigestion, if breastfeeding, the mother ate too much iron containing food may also cause the baby green stools, can be treated with medication, such as Bacillus subtilis bacillus live bacteria granules. Green baby stool is usually related to indigestion, the baby’s gastrointestinal function is relatively weak, easy to produce indigestion, stool abnormalities, such as green stool, watery stool, you can use probiotics under the guidance of the doctor to regulate the gastrointestinal, such as bacillus subtilis bacillus granules, you need to pay attention to the side effects of the drug, such as dependence, the number of times of stools become more frequent, and other adverse reactions. If the mother eats too much iron-containing food, you can reduce the intake of iron, and the baby’s green stools can be relieved. It is recommended to take your baby to the hospital for a checkup to identify the cause of the green stools.