After birth, the color of the stool is usually dark green, which is related to the swallowed amniotic fluid, epithelial cells shed by the fetus and intestinal secretions. After 12 hours of birth, most of them will have dark green stools, which will take 2-3 days. After drinking breast milk or eating formula, the color of stools will gradually become lighter and turn into yellow-green stools. If the baby is exclusively breastfed, the stool will be paste-like, golden yellow or a little greenish in color. If you are artificially fed, the stool will be earthy yellow, and dry, rough, slightly sour smell, as long as it is not very dry, like a fecal ball, do not worry about it, drink more water can be.