Hi,
The presence of black chunks in your stool, along with possible mucus, could indicate a few possible causes, including:
1. Blood: The black chunks may actually be old, dried blood, which can be a sign of bleeding in the upper gastrointestinal tract. If this is the case, it is important to seek medical attention immediately.
2. Medications or supplements: Certain medications or supplements, such as
iron supplements or bismuth-containing medications, can cause the stool to turn black.
3. Food: Certain foods, like blueberries or black licorice, can also cause the stool to turn black.
It is important to make an appointment with your healthcare provider to investigate the cause of the black chunks in your stool. Your healthcare provider may recommend further testing, such as a
fecal occult blood test, or a
colonoscopy.
Take care. Hope I have answered your question. Let me know if I can assist you further.
Regards,
Dr. Diwashish Biswas, Internal Medicine Specialist