The poopoo color guide

The color chart

Color	Verdict
Black, tarry (days 1 to 4)	Normal. That is meconium clearing out
Yellow, mustard, seedy	Normal, the classic breastfed poop
Tan, yellow-brown, paste-like	Normal, the classic formula poop
Green, any shade	Normal. Iron in formula, fast feeds, or just Tuesday
Orange-ish	Normal, pigments doing their thing
White, gray, chalky	Call the doctor same day
Black after the first week	Call the doctor
Red, bloody, or lots of mucus	Call the doctor

One honest note on red: a tiny streak can come from a small crack around the anus or from swallowed blood if nipples are cracked, and turns out harmless. It still earns a call, because “harmless” is the doctor’s word to hand out, not ours.

How often is normal

• Breastfed: anything from a poop with every single feed to, after about 6 weeks, one giant event every several days. Both are fine as long as stools stay soft and baby is content and gaining weight.
• Formula-fed: usually at least one dirty diaper every 1 to 2 days. Formula stools are firmer, and true constipation (hard pellets, real distress) is worth a call rather than home remedies.
• Straining, grunting and going red in the face while producing a perfectly soft poop is normal. Babies are learning to coordinate muscles while lying down, which is honestly a hard job.

Textures, smells and other surprises

• Seedy bits in breastfed poop are milk curds, not a problem.
• Runny is not diarrhea by itself in a breastfed baby. Diarrhea is a sudden change: much more watery, much more often, often with a sick baby attached.
• Foamy green stools plus a very gassy baby sometimes point to feeding pattern quirks; mention it at a checkup, panic not required.
• The smell changes with diet and age. Breastfed poop is famously mild; formula brings more character. Solids, later, bring consequences.