What sort of poo is not normal?
Very newborn babies pass out meconium, which is black. After the meconium is cleared, they shouldn't have solid black poop anymore. If your newborn is on breastmilk, the optimum colour is a golden yellow. If your baby is on formula, it should look hummus brown. - Solid black - Watery streaked with red - Raspberry poop with mucus - Chalky white If you see these 4 colours in your baby's poop, rush your kid to the A&E immediately. http://incredibleinfant.com/health/baby-poop-color-chart/
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Adding to Jamie's comment, I found this guide (very visual) really helpful as a newborn as it has helped whenever I am not sure if it's normal or not. http://www.babycenter.com/baby-poop-photos
depening on how old is ur baby the poo colour and consistency changes. check this link:- https://www.unitypoint.org/blankchildrens/article.aspx?id=40567710-74c7-4ef2-a040-847be9fbd35a
thanks