#asktheexperts My baby is 2 months and 24 days old. He's on both breastmilk and Formula. He's been fed formula about 100 ML each time about 3 to 4 times a day and rest of the time breastmilk. the colour of his poop is always different. sometimes bright yellow, yellow with green, greenish. sometimes it is yellow with greenish-black mucous. is it normal? if not, what should I do?