What does maroon stool indicate?

December 16, 2025 · caitlin

Maroon stool can be alarming and may indicate gastrointestinal bleeding, which requires prompt attention. The color change often results from bleeding in the upper part of the digestive tract, such as the stomach or small intestine, but it could also be due to dietary factors or medications. Understanding the potential causes and when to seek medical help is crucial for addressing the underlying issue effectively.

What Causes Maroon Stool?

Maroon stool is typically a sign of bleeding within the digestive system. Here are some common causes:

  • Gastrointestinal Bleeding: Bleeding in the upper gastrointestinal (GI) tract, such as from an ulcer or gastritis, can cause maroon-colored stools.
  • Diverticular Disease: Diverticula are small bulging pouches that can form in the digestive system. If they bleed, they can cause maroon stools.
  • Colitis: Inflammation of the colon, known as colitis, can lead to bleeding and maroon stools.
  • Colon Polyps or Cancer: Polyps or cancer in the colon may cause bleeding, resulting in maroon-colored stools.
  • Hemorrhoids: Although hemorrhoids usually cause bright red blood, they can sometimes lead to maroon stools if bleeding occurs higher in the rectum.

When Should You Be Concerned About Maroon Stool?

While not all instances of maroon stool are serious, it is important to recognize when to seek medical attention:

  • Persistent Symptoms: If maroon stool persists for more than a day or is accompanied by other symptoms like dizziness or fatigue, consult a healthcare professional.
  • Severe Abdominal Pain: Intense pain along with maroon stool may indicate a serious condition that requires immediate medical attention.
  • Changes in Stool Frequency: A sudden change in bowel habits, especially when combined with maroon stool, warrants further investigation.

How Can Diet and Medications Affect Stool Color?

Sometimes, maroon stool may not be related to bleeding but instead caused by dietary factors or medications:

  • Foods: Consuming large amounts of red or purple foods, such as beets or berries, can temporarily change stool color.
  • Medications: Certain medications, like iron supplements or bismuth subsalicylate, can alter stool color.

Practical Steps to Take

If you notice maroon stool, consider these steps before consulting a healthcare provider:

  1. Review Your Diet: Check if you have consumed foods that can change stool color.
  2. Medication Check: Review any medications or supplements you are taking that might affect stool color.
  3. Monitor Symptoms: Keep track of any additional symptoms like pain, dizziness, or changes in bowel habits.

Related Questions About Maroon Stool

What Does It Mean if My Stool Is Dark Red?

Dark red stool can indicate bleeding in the lower gastrointestinal tract, such as the colon or rectum. It is important to seek medical advice to determine the cause.

Can Stress Cause Maroon Stool?

Stress itself does not cause maroon stool, but it can exacerbate gastrointestinal conditions that might lead to bleeding, such as ulcers.

How Is Gastrointestinal Bleeding Diagnosed?

Doctors may use endoscopy, colonoscopy, or imaging tests to diagnose the source of gastrointestinal bleeding. Blood tests can also help assess the severity of blood loss.

What Are the Treatments for Maroon Stool?

Treatment depends on the underlying cause. For example, ulcers may require medication to reduce stomach acid, while diverticular disease might need dietary changes or surgery.

Can Dehydration Affect Stool Color?

Dehydration can lead to constipation and darker stools, but it is unlikely to cause maroon-colored stools without other underlying conditions.

Conclusion

Maroon stool can be a sign of gastrointestinal bleeding or other health issues. It is important to monitor symptoms and seek medical advice if the condition persists or is accompanied by other concerning symptoms. Understanding the potential causes and taking practical steps can help manage the situation effectively. For more information on digestive health, consider reading about common gastrointestinal disorders or the impact of diet on digestive health.

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