my baby 2 nd completed enter into 3 Rd month as my health problems my baby started formula that time poop is black colour is it any problem???

A. If the child is on formula feeding the colour of the motion can be dark green too grey but black colour is usually if you giving any iron supplement to their child it mostly is because of that and 99% of the cases still if you feel there is a problem then you can check with your doctor ones