Should I Go to the ER if My Poop Is Black and Tarry?

Black, tarry stool can be alarming—but it isn’t always an emergency. Understanding what’s behind your poop color helps you decide whether to seek urgent care.

---

What Is Black, Tarry Poop?

• Medically called melena, this stool is dark, shiny, and sticky.
• The color comes from digested blood in the gut or from certain foods, supplements, and medications.
• True melena usually has a distinctive, foul odor.

---

Common Non-Emergency Causes

Before panicking, consider these harmless reasons:

• Iron supplements or multivitamins
• Bismuth medications (e.g., Pepto-Bismol)
• Foods such as black licorice, blueberries, or dark food coloring

If you’ve recently started any of the above, watch your poop for 1–2 days. If it returns to normal, you likely don’t need an ER visit.

---

Serious Causes

Black, tarry stool can signal bleeding in the upper gastrointestinal (GI) tract. Possible sources include:

• Peptic ulcers (sores in the stomach or first part of the small intestine)
• Gastritis or severe stomach inflammation
• Esophageal or gastric varices (swollen veins that can rupture)
• Gastrointestinal tumors
• Mallory-Weiss tears (small tears in the esophagus from severe vomiting)

Blood from these sources turns black and sticky as it’s broken down by stomach acids.

---

Other Signs to Watch

Even if you’re unsure about the stool’s color, look for accompanying symptoms that could point to serious issues:

• Dizziness, lightheadedness, or fainting
• Rapid heartbeat or palpitations
• Low blood pressure (feeling “wobbly” when standing)
• Severe abdominal pain or cramping
• Vomiting blood or coffee-ground–like material
• Unexplained weakness or fatigue
• Shortness of breath

If you have any of these, your body may not be getting enough blood or oxygen—prompt evaluation is critical.

---

When to Seek Emergency Care

Go to the nearest emergency department if you have black, tarry poop plus any of the red-flag symptoms above. Call 911 or your local emergency number if you experience:

• Signs of shock (cold, clammy skin; confusion; rapid breathing)
• Persistent vomiting of blood
• Chest pain or pressure
• Loss of consciousness

These may indicate significant blood loss or a life-threatening condition.

---

When to Call Your Doctor

If your stool is black and tarry but you have none of the emergency signs:

• Contact your primary care provider or gastroenterologist within 24 hours.
• Be prepared to describe:
  • The duration and frequency of black stool
  • Any new medications, supplements, or foods
  • Other symptoms (abdominal pain, nausea, fatigue)

Early evaluation can help identify ulcers or other treatable conditions before they worsen.

---

What You Can Do Now

1. Track your poop. Note color, consistency, and any changes.
2. Review recent diet, medications, and supplements. Stop iron or bismuth products briefly to see if stool lightens.
3. Monitor vital signs at home—check your pulse and blood pressure if possible.
4. Stay hydrated; sip water or an electrolyte solution.
5. Consider a free, online symptom check, using the doctor approved Ubie Symptom Checker to get personalized guidance.

---

Speak to a Doctor

Black, tarry poop can range from harmless to life-threatening. When in doubt, always speak to a doctor. If you experience severe symptoms, go to the ER immediately.

Your health matters. Prompt medical evaluation ensures the best possible outcome.