Formula-fed babies' poop is usually soft, but more firm than that of a breastfed baby. The odor is closer to "normal" poop, and the color is generally a yellow/tan, sometimes with hints of green.

New parents soon learn that baby poop comes in all shapes, textures, and colors. Breastfed babies usually have seedy mustard-colored poop, while formula-fed infants have firmer yellow or brown poop.

Hirschsprung's disease: A baby who has delayed passage of meconium during their first few days of life and who has had problems passing bowel movements since they were born can be a cause for ...