If your baby has greenish-black stools, most of them are caused by inadequate breastfeeding, so you should breastfeed your baby adequately and pay attention to emptying one breast and then the other when breastfeeding, because milk contains different ingredients before, during and after. If there is foam in the greenish-black stool, as well as an increase in the number of stools and irritation of the flushed skin around the anus, most of them are indigestion, and can be treated with oral multi-enzyme tablets and Clostridium casei live bacteria. At the same time, you should pay attention to breastfeeding hygiene, wash your hands and nipples before and after breastfeeding, and develop good breastfeeding habits.