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Published on: 2/10/2026
Yellow and greasy poop in women 65+ often signals fat malabsorption and can result from gallbladder or bile duct issues, pancreatic enzyme insufficiency, intestinal disorders such as celiac disease, inflammatory bowel disease, or bacterial overgrowth, as well as infections, diet changes, or certain medications. There are several factors to consider, and persistent cases carry risks like deficiencies of vitamins A, D, E, and K, bone loss, dehydration, and unintentional weight loss; see below for specific red flags, when to speak to a doctor or seek urgent care, what tests to expect, and proven treatments and self care steps.
Seeing yellow and greasy poop can be surprising and uncomfortable, especially if it's new or ongoing. For women age 65 and older, changes in bowel movements deserve attention—but not panic. Many causes are treatable, and understanding what's happening can help you take the right next steps.
This guide explains what yellow and greasy stool means, common causes in older women, possible health risks, and when it's important to speak to a doctor. The information below is based on well‑established medical knowledge from trusted health authorities and clinical practice.
Yellow and greasy poop often looks:
Doctors often call this fatty stool or steatorrhea. It usually means that fat is not being fully digested or absorbed in the gut.
As we age, digestion can change. That doesn't always mean something serious—but persistent changes should be checked.
Normal stool gets its brown color from bile, a digestive fluid made by the liver and stored in the gallbladder. When digestion or bile flow is disrupted, stool color and texture can change.
Fat digestion requires bile from the liver and enzymes from the pancreas. If either is reduced, fat can pass through the body undigested.
Possible reasons include:
Bile gives stool its brown color and helps digest fats.
Yellow and greasy poop may occur if:
The pancreas produces enzymes needed to break down fat.
Conditions linked to yellow and greasy poop include:
These conditions can be serious if untreated, but many are manageable with medical care.
The small intestine absorbs nutrients, including fats.
Absorption problems may happen with:
These conditions can develop or worsen later in life.
Some stomach infections cause loose, watery stools that appear greasy or pale. If you're experiencing urgent, frequent bowel movements along with yellow coloring, you may want to use a Yellow diarrhea symptom checker to better understand what's happening and whether you should seek care right away.
This may happen after:
If it resolves within a few days, it's often not serious.
What you eat matters.
Yellow and greasy poop may occur after:
If the change happens right after dietary changes, this may be the cause.
Occasional yellow and greasy poop is often harmless. However, ongoing symptoms can lead to real health concerns, especially in women over 65.
Possible risks include:
These risks are not meant to alarm you—but they are good reasons to take symptoms seriously and get proper care.
Yellow and greasy poop may or may not be diarrhea.
If you're unsure what you're experiencing, you might consider doing a free, online symptom check for Yellow diarrhea. Tools like this can help you decide whether medical care is needed.
It's important to speak to a doctor if yellow and greasy poop:
These signs may point to conditions that require treatment.
Seek urgent medical care if there is:
A healthcare provider may recommend:
These tests help identify the cause and guide treatment.
Treatment depends on the cause, but many options are effective.
Most people see improvement once the underlying issue is addressed.
While waiting to speak with a doctor, gentle steps may help:
These steps are supportive—not a substitute for medical care.
Yellow and greasy poop in women over 65 is not something to ignore, but it also doesn't mean the worst. Many causes are manageable once identified. The key is paying attention to patterns and symptoms.
If you're unsure what's going on, a free online symptom check for Yellow diarrhea can be a helpful starting point. Most importantly, speak to a doctor about any symptoms that are persistent, worsening, or potentially life‑threatening.
Getting clear answers is the best way to protect your health and peace of mind.
(References)
* Di Ciaula A, Vanna R, Vianale R, et al. Causes of malabsorption in the elderly: A systematic review. World J Gastrointest Pathophysiol. 2019 Jan 23;10(1):1-10. doi: 10.4291/wjgp.v10.i1.1. PMID: 30678225; PMCID: PMC6342811.
* Dominguez-Muñoz JE, Carballo Álvarez F, Iglesias-García J, et al. Exocrine Pancreatic Insufficiency in Elderly Patients. Nutrients. 2019 Jul 23;11(7):1687. doi: 10.3390/nu11071687. PMID: 31341071; PMCID: PMC6682915.
* Volta U, Piscaglia M, Fiorini F, et al. Celiac Disease in the Elderly. Nutrients. 2020 Feb 8;12(2):427. doi: 10.3390/nu12020427. PMID: 32049008; PMCID: PMC7071490.
* Quigley EMM, Murray JA, Fedorak RN, et al. Small Intestinal Bacterial Overgrowth (SIBO) in the Elderly. Am J Gastroenterol. 2021 May 1;116(5):896-905. doi: 10.14309/ajg.0000000000001223. PMID: 33916960.
* Floreani A, Cazzagon N. Malabsorption in Cholestatic Liver Diseases. J Clin Gastroenterol. 2019 Aug;53(7):471-477. doi: 10.1097/MCG.0000000000001248. PMID: 31190413.
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