Black coloured
Motion (Melena)

What is black coloured motion (Melena)?

Black, tar-like, or watery stools are known as melena. It is blood which has undergone some chemical changes. It indicates that there is bleeding in the upper gastrointestinal tract, typically from the stomach, duodenum, or small intestine. As the blood travels down the digestive tract, it gets digested and turns black, giving stool a tar-like appearance.

What other symptoms may accompany melena?

  • Weakness or fatigue
  • Dizziness or fainting
  • Low blood pressure
  • Abdominal pain
  • Vomiting (sometimes with blood)
  • Passing loose motions ( black coloured) several times

If these symptoms occur, seek emergency care.

black_coloured_motion-melena

What does melena look like?

You may notice:

  • Black, sticky, shiny, or tar-like stools
  • Strong foul smell
  • Sometimes watery consistency

This type of stool is very different from normal dark stool caused by iron tablets or certain foods.

What causes black tarry stools?

Common causes include:

  • Duodenal ulcers

  • Stomach (gastric) ulcers

  • Stomach cancer

  • Small intestinal tumors

  • Esophageal, gastric and small intestinal varices (in liver disease)

  • Overuse of painkillers (NSAIDs)

  • Severe gastritis

  • Bleeding from pancreas or bile duct

Is melena a medical emergency?

Yes. Melena indicates internal bleeding which can be life-threatening if untreated. Immediate medical evaluation is essential.

How is melena diagnosed?

Your gastro specialist may recommend:

  • Upper GI endoscopy
  • Blood tests (hemoglobin levels, liver function test)
  • CT/MRI scan
  • Stool test 

What is the treatment for black tarry stools?

Treatment depends on the cause and severity:
✔ Endoscopic control of bleeding
✔ Medications to treat ulcers (proton pump inhibitors)
✔ Stopping harmful medications (e.g., painkillers, steroids)
✔ Surgery in case of tumors or severe bleeding
✔ Treatment of underlying liver or GI disease

When should I see a doctor?

Seek medical attention immediately if you experience:
🚨 Black tar-like stools
🚨 Weakness or dizziness
🚨 Vomiting blood
🚨 Severe abdominal pain

🔴 Do NOT ignore black stools

It is a warning sign of internal bleeding. Early diagnosis and treatment can save life and prevent complications.

👉 Consult The Best Gastro Care Centre immediately if you notice black tarry stool.