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black and tarry stool

Author

Rachel Hernandez

Updated on August 15, 2026

Consult your doctor if you’re concerned about your stool color. If your stool is bright red or black — which may indicate the presence of blood — seek prompt medical attention. Food may be moving through the large intestine too quickly, such as due to diarrhea.

What should I do if my stool is black and tarry?

Even if you think you know why it’s happening, always call your doctor if you have black, tarry stools.

Are black tarry stools a medical emergency?

Many of these conditions are serious and include a host of other gastrointestinal symptoms. If your stools have been black and tarry for a few days, and are accompanied by stomach aches and vomiting, you should seek medical help immediately.

Why is my poop dark and sticky?

Sticky poop can be a symptom of a temporary or chronic digestive disorder, or the result of a diet that contains too much fat. Sticky poop can appear greasy and pale or dark and tarry. If you also have other symptoms, such as gas or abdominal cramps, talk to your doctor to determine the cause.

Does liver disease cause black stool?

Black tarry stools can happen in advanced liver disease and are caused by blood passing through the gastrointestinal tract – this needs urgent medical attention. Yellow skin or eyes (jaundice). Jaundice is due to the build-up of bilirubin (a bile pigment) in the blood because it can’t be processed effectively.

How long can black stool last?

by Drugs.com

Dark colored / black stools are a common side effect and can last for several days after you stop taking Pepto-Bismol. This is not a serious side effect.

What does tarry poop look like?

If bleeding occurs in the stomach or the upper part of the small intestine, the stool may turn black and sticky, and be described medically as black, tarry stool (melena). Generally, the black, tarry stool also is foul-smelling.

Can black stool cause death?

Overview. Gastrointestinal (GI) bleeding is a symptom of a disorder in your digestive tract. The blood often appears in stool or vomit but isn’t always visible, though it may cause the stool to look black or tarry. The level of bleeding can range from mild to severe and can be life-threatening.

How does blood in the stool look like?

Blood from your stool could look bright red, or it might be dark red or black. How the blood looks depends on where it is coming from. Spots of red blood on the toilet paper, drops in the toilet bowl, blood on the surface of your stool or in your underwear indicate the bleeding is coming from the anus or lower rectum.

What does cancerous poop look like?

Blood from higher up in the bowel doesn’t look bright red. It goes dark red or black and can make your poo look like tar. This type of bleeding can be a sign of cancer higher up the bowel. Or it could be from a bleeding stomach ulcer for example.

Why is my stool dark brown almost black?

Stool that is almost black, dark, or tar-like with a thick consistency may mean there is bleeding in the upper part of the gastrointestinal tract. 17 Medical conditions that can cause dark, tar-like stool include duodenal or gastric ulcers, esophageal varices, a Mallory-Weiss tear, and gastritis.

What are the five signs of liver damage?

Five Liver Damage Warning Signs
Fluid Retention. When there is a buildup of scar tissue in the liver known as cirrhosis, the blood flow through the liver is blocked. Jaundice. Nausea/Loss of Appetite. Pale Stools. Bruising. Caring for Your Liver.

What are the 3 signs of a fatty liver?

Symptoms
Abdominal swelling (ascites)Enlarged blood vessels just beneath the skin’s surface.Enlarged spleen.Red palms.Yellowing of the skin and eyes (jaundice)

What are signs that your liver is not functioning properly?

Liver failure occurs when your liver isn’t working well enough to perform its functions (for example, manufacturing bile and ridding the body of harmful substances). Symptoms include nausea, loss of appetite, and blood in the stool. Treatments include avoiding alcohol and avoiding certain foods.