Poop is oily and shiny-looking: is there a fat absorption problem?
⚡ Short answer: If poop looks this oily, shiny, and sticks to the diaper — called steatorrhea (fatty stool) — it usually means fats aren't being digested completely.
Anonymous
bir anne · Diapers & Digestion
My baby's poop is oily, shiny, and sticks to the diaper. Is this related to not absorbing fats?
Maiyko AI ADVISOR
The real reply from the in-app AI advisor
If poop looks this oily, shiny, and sticks to the diaper — called steatorrhea (fatty stool) — it usually means fats aren't being digested completely. This can be from insufficient lipase enzyme production from the pancreas, a bile flow problem, or absorption issues. Calling it simply "not absorbing fats" is correct, because when the intestines struggle to absorb fats, the poop takes on that appearance.
If greasy stool continues, especially if weight gain is slow or you notice belly bloating, discomfort, foul-smelling gas, you should have your pediatrician evaluate it. Blood tests, stool tests, or it could even be a temporary infection-related issue — that's why doctor evaluation, not just observation, is key.
Occasional mild oiliness is usually not important; but if it appears in every diaper, lasts longer than a week, or is also affecting your baby's overall condition, definitely check with your pediatrician.
⚕️ Health note: This answer is for general information only; it is not medical advice. Every baby is different — for decisions about your baby's health, consult your pediatrician.
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