Stool Color Meanings
The kind of food you consume can certainly affect the color and texture of stool, but persistent changes in stool color and texture could even be a symptom of a health problem. Scroll down to learn about stool colors and what they mean with the help of a stool color chart depicting stool color meanings with the probable causes.

Characteristic Features of an Ideal Stool
Before moving on to stool color meanings, let me tell you about the characteristic features of normal stool.
- Stool color should be light to medium brown.
- It should have the texture or consistency of peanut butter.
- Its length should be between 4-8 inches.
- It should leave the body comfortably, without any strain.
Stool Color Chart
| Stool Color | Stool Color Meaning | Probable Health or Dietary Causes |
| Light to medium brown | Normal | Normal |
| Very light brown | Too much fat in the body, liver problem, or constipation | Insufficient fiber content in the diet |
| Black | Duodenal ulcer, internal bleeding in the upper section of the GI tract, i.e. esophagus, stomach or first section of the small intestine | Consumption of highly concentrated iron supplements, large quantities of olives, licorice, blue berries; heavy intake of alcohol, improper blood flow to the intestine, and vascular malformation |
| Dark red or maroon | Internal bleeding of the lower section of the GI tract, internal hemorrhoids, anal fissure, colon polyps, diverticulitis, or colon cancer | Internal bleeding causes blood to seep into the colon and get mixed with the waste |
| Bright red | Hemorrhoids, digestive system disorders or colon cancer | Consumption of foods that are rich in red dyes such as licorice, candy, and other food items containing artificial color cause black or dark red colored stool |
| Orange | Gallbladder malfunctioning, fast transit time | Gallbladder malfunction, fast transit time, consumption of medicines or foods containing beta-carotene (carrots, sweet potatoes, pumpkin etc.), antacids containing aluminum hydroxide and artificially synthesized food items |
| Yellow | Gilbert's syndrome, malabsorption, giardiasis, and pancreatic cancer | Gilbert's syndrome leads to poor processing of red blood cells; undigested fat mixes with stool in case of malabsorption of fats; a parasitic infection called giardiasis can cause yellow stool color and diarrhea |
| Dark Green Stool | Undigested green vegetables such as spinach, a fast transit time, irritable bowel syndrome, ulcerative colitis and celiac disease | Consumption of green leafy vegetables, foods flavored with lime, iron supplements, vitamin supplements containing chlorophyll or foods that contain green dyes such as Kool-Aid and gelatin |
| Gray | Malabsorption | Blockage of bile from gallbladder to intestine. The most probable reason is presence of tumor in the bile ducts or pancreas |
| Clay | Malabsorption, hepatitis, gallbladder disorders | Hepatitis and gallbladder problems disrupt the flow of bile out of the liver, and hence the stool color changes from brown to clay |
This was a brief overview on the medical conditions that may cause stool color to change. I hope that the aforementioned stool color chart provided you with the required information on stool color meanings and the possible causes. If you have been experiencing abnormal bowel movement with abnormal stool color, consult a doctor immediately. A timely diagnosis and treatment will certainly ensure a speedy recovery.
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