Causes of green stools in newborns mainly include the following: 1, caused by newborn hunger. If the newborn eats the amount of breast milk or drink the amount of milk powder is seriously insufficient, it will newborns caused by the green color of the stool. The amount of milk ingested by the newborn is not enough, thus causing more bile excretion into the large intestine, the newborn intestinal peristalsis is also significantly accelerated, for this situation, you can give the newborn to increase the amount of milk feeding. 2, because the newborn suffers from enteritis resulting in green stool. The newborn’s resistance is weak, often accompanied by bacterial infection or viral infection, pathogenic bacteria will invade the newborn’s intestinal tract, causing the newborn to enteritis, the newborn’s stool is not only green in color, and thin in nature, the number of times more.