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Bright Green

Bright Green

AKA: Foremilk/hind milk imbalance
Looks Like: Green, frothy stool

Breast-fed babies who receive more foremilk than hind milk sometimes have bright green baby poop.

What Does It Mean?

When your breast-fed baby nurses for short periods of time on each breast, he might get more foremilk, which is sweeter and thinner, and less hind milk, which is richer and fattier. Your baby might need to nurse longer on each side in order to ensure he is consuming enough hind milk during each feeding. Sometimes a virus will turn your baby's stools bright green. If your baby is fussy and seems uncomfortable, contact your health care provider.

What Should I Do?

Try not to switch your baby to your other breast until you've nursed at least 20 minutes on one side.

Contact your health care professional right away if you see:
  • Blood or mucus in stools
  • Fever
  • Vomiting
  • Irritability
  • Refusal to eat
  • Decreased or dark-colored urine
  • Decreased activity
The information in this section was derived from the following:
Abbott Nutrition. Parents Guide to Infant Stools. March 2009.
McGrail A, Metland D, Murray L, et al. The BabyCenter Essential Guide to Your Baby's First Year. July 2007.
Nathanson LW. The Portable Pediatrician. September 2002.