doctor please suggest me if my 4 month baby is passing green stool from past 1 week

A. hi green stool caused by many reasons like imbalance of foremilk and hindmilk , food reaction which you ate , reaction to iron Medicine etc so , please check it feed your child on each breast at least 20 minutes so your child can get full fat hindmilk well. make changes in your diet . and as far as your child is not showing any discomfort ,you should not worry about it much