My baby is 2 n half months old n he's doing green colored poop. Why so?

hi mommy, i do agree with what mommy neeta menon said here. it is quite possible that your baby is feeling full before finishing off the entire feed at a go. do you feel your breasts are completely empty before your baby moves on to the other one, or stops? do check next time. it is also possible that your baby may have picked up some infection, so do check this out with your baby's doctor.