Black stool is a condition in which the feces are very dark or black in color. Black stool may be normal in some cases and caused by ingesting certain substances or medications, such as iron supplements. However, black stool can also be caused by a serious condition, such as bleeding in the digestive tract caused by a peptic ulcer.
What causes black or very dark stools?
What Are the Causes of Black Stool?
- Food and Supplements. Black stools could be caused by food, supplements, medication, or minerals. ...
- Blood in the Stool (Melena) Blood that comes from the upper GI tract—such as the esophagus or the stomach—may turn the stool black.
- Diagnosis. ...
- Causes of Blood in Stool. ...
- Treatment. ...
- Summary. ...
- A Word From Verywell. ...
What does black stool indicate and how is it treated?
Why Is Your Poop Black and Tarry?
- Iron Supplements. Black poop can be a side effect of iron pills you take for anemia -- a condition that happens when you don't have enough red blood cells to ...
- Dark-Colored Foods. Sometimes dark-colored foods turn your poop black. ...
- Medicines With Bismuth. ...
- Bleeding Ulcer. ...
- Esophageal and Gastric Cancers. ...
- Mallory-Weiss Tear. ...
- Esophageal Varices. ...
Which foods can cause dark stool?
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- Junk Foods. Eating a lot of junk food results in a change int eh colour of the poop. ...
- Blueberries. A lot of studies have shown eating lots of blueberries can darken the stool. ...
- Dark Vegetables. ...
- Caffeine. ...
- Sugary Drinks. ...
- Beef. ...
- Kidney Beans. ...
- Prunes. ...
What foods turn stool dark?
- Beets. Notice red poop after eating beets? ...
- Green Veggies. If you like to load up on greens like spinach, broccoli and lettuce, your poop may reflect that. ...
- Blueberries. Blueberries can cause your poop to have a blue or black tinge. ...
- Food Coloring. In 2017, Oreo and Peeps teamed up to make Peeps Oreos, a novelty snack with a bright pink filling. ...
- Medications. ...
What does it mean when your stool is dark?
Symptoms. If your stool is a darker color than normal, it may indicate internal bleeding. You can have both upper and lower gastrointestinal (GI) bleeds. Upper GI bleeds tend to be from gastritis (inflammation of the stomach lining) or ulcers but there are other causes as well.
Why is my stool dark?
But stool that simply seems darker than normal may be the result of dehydration, constipation, or eating dark-colored foods or iron-rich foods or supplements.
Why does my stool have a color?
It may also be affected by your nervous system. Sometimes flare-ups are due to stress, diet, or other changes. IBS can have different symptoms depending on the person, but most experience abdominal cramps or discomfort. IBS may affect the color and consistency of your stool.
Why is my GI bleed red?
Lower GI bleeds tend to be bright red, bloody stools because there’s not enough time for the blood to be digested to turn the stool a darker brown, black, or tarry. The most common causes of lower GI bleeds are diverticular disease and hemorrhoids.
What causes a stool to turn black?
Many foods or medications may naturally cause your stool to change colors, including looking dark brown or black. Common foods known to do this include licorice, blueberries, beets, red-colored gelatin or food made with blood (ie blood sausage).
Why do I get dizzy when I poop?
Dizziness. If your stool is a darker color than normal, it may indicate internal bleeding. You can have both upper and lower gastrointestinal (GI) bleeds. Upper GI bleeds tend to be from gastritis (inflammation of the stomach lining) or ulcers but there are other causes as well.
How do you know if you have constipation?
Symptoms. Difficulty emptying your bowels or feeling “blocked”. Having fewer than three bowel movements in a week. Hard, pellet-like stool. Abdominal cramping. Constipation can be due to a host of factors, including poor diet, dehydration, being inactive, hormone fluctuations, and a side effect of medication.
What does it mean when your stool turns black?
Blood in the Stool (Melena) Blood that comes from the upper GI tract—such as the esophagus or the stomach—may turn the stool black. This is a condition called melena. If you have melena, you may also notice that your stool has a tarry texture or is similar to coffee grounds.
Why is my stool black?
Causes. Black stool can be caused by eating certain foods, taking certain medications or supplements (like iron), or it can be the result of something more serious . Stool is also known as bowel movements, feces, or poop, and bodily waste left over after digestion.
Why does stool turn black after a syringe?
After the bleeding has stopped, stool may continue to appear black and tarry for several days. Possible causes of melena include a bleeding ulcer, gastritis, esop hageal varices (enlarged veins), or a tear in the esophagus from violent vomiting (Mallory-Weiss tear). 2.
Why is my stool red?
This is a condition called hematochezia. Blood stemming from this region will be more red in appearance, because it will be exposed to less of the digestive process.
How to tell if you have blood in your stool?
Blood in the stool can be detected through a stool test. See your doctor right away if you have black stool along with pain, vomiting, or diarrhea. If you suspect there is blood in your stool, contact your doctor as soon as possible.
What is the inflammation of the stomach lining?
Gastritis is the inflammation of the stomach lining. This inflammation can be caused by too much alcohol, eating spicy foods, smoking, infection with bacteria, or by the prolonged use of NSAIDs. Gastritis can also develop after surgery or trauma, or it may be associated with already existing medical conditions. 5
What is the rarest condition in the stomach?
Dieulafoy lesion (a rare condition of the stomach) Erosive esophagitis (inflammation in the esophagus) Erosive gastritis (inflammation in the stomach) Intestinal ischemia (blood supply to the intestines is cut off) Peptic ulcers (sores in the stomach lining or upper part of small intestine)
How to get rid of dark stool?
Check the iron content of your supplement. If you are not sure about the cause of very dark stool, try to withhold supplements for 3 to 5 days. And watch your stool color, if it reverts to normal, then it is due to the iron-containing supplement.
Why is my stool dark brown?
Very dark brown stools are often caused by dark foods, food pigments, or medications. However, almost black stool can be a sign of bleeding inside your gastrointestinal tract.
What causes black stools?
Medications can indirectly cause almost black stools (melena) by inducing bleeding inside the stomach or intestine. Tow major mechanisms of bleeding: Inducing ulcers or injury to the lining of your intestine which in turn bleeds.
Why is my stool black?
Because it is less frequent compared to food and medications. Also, Bleeding into the upper part of your gut (eso phagus, stomach, and early part of small intestine) causes JET BLACK stool rather than a very dark brown stool. Minor and recurrent bleeds can cause black spots or speckles in the stool.
What is the smell of blood coming from the upper part of the stomach called?
Blood coming from the upper part of your gut (esophagus, stomach, or duodenum) is usually black (called melena). Melena is different from a very dark brown stool. It is tarry black. Usually with a characteristic offensive smell (rotten meat smell).
Why does my stool turn black?
Other causes include NSAIDs, smoking, or drinking alcohol or eating foods that irritate the lining of the stomach. Inflammation can cause small amounts of bleeding, which can turn your stool black. Treatment depends on the cause. If the gastritis is caused by smoking, stop smoking.
What is a black poop?
Black or bloody stool. Colon polyps are small growths in the colon. Polyps begin as benign (not cancerous) growths, but can develop into cancer over time. Usually, they do not have any symptoms, but sometimes, they can ooze small amounts of blood. A colonoscopy can find polyps before they become cancerous.
What does it mean when your stool is hard?
Hard, pebbly stool. Dark brown or black colored stool. Abdominal discomfort or bloating. Constipation is when you have infrequent bowel movements and stool is very hard and dry. The stool may appear darkish or black. When you try to have a bowel movement, you may strain, or your stool may look like hard pellets.
Why is my stool brown?
If your stool is any color other than brown, it may be alarming. Sometimes the reason is as innocent as eating new foods. But stool colors can also be a sign of serious conditions like gastrointestinal bleeding, so it’s important to find out what’s going on. Diarrhea & Stool. 8 Causes of Diarrhea.
Why does my baby's stool smell black?
Black blood in the stool usually also has a bad odor. In the first day of life, newborns have black stool made up of amniotic fluid, skin cells, and other things ingested while in the womb. This is normal and changes to a tan color within a few days. 1. Peptic ulcer.
What does it feel like to have a hard bowel movement?
When you try to have a bowel movement, you may strain, or your stool may look like hard pellets. You may feel abdominal pain, cramping, or bloating. Laxatives, good nutrition, and drinking a lot of fluids can all help with constipation.
What is the cause of H pylori?
If it’s caused by H pylori, you’ll be prescribed antibiotics to treat the infection. If NSAIDs are the cause, your doctor will consider lowering or changing what you are taking.
Why is my stool black?
Black stool can be due to a variety of serious or life-threatening conditions that result in bleeding of the gastrointestinal tract including: Abdominal or esophageal trauma. Abnormal blood vessel.
What to do if your stool is dark?
Seek prompt medical care if you have unusually dark stools or any change in the color or texture of your stool. If your stools are black and tarry in texture, bloody, or if you have major rectal bleeding, seek immediate medical care (call 911).
What are the symptoms of black stool?
Symptoms that may accompany black stool include: Abdominal pain or cramping. Abdominal swelling or bloated feeling. Change in bowel habits.
What causes a swollen stomach?
Bowel ischemia (lack of normal blood flow to the intestines and death of intestinal tissue) Gastritis, such as irritation and swelling of the stomach caused by nonsteroidal anti-inflammatory drugs (NSAIDs) Inflammatory bowel disease (includes Crohn’s disease and ulcerative colitis) Radiation therapy.
Can you see blood in stool?
Very small amounts of blood in the stool may be seen by the naked eye and not significantly change the color of stool. This is called fecal occult blood, which can be a symptom of a serious disease and may be found with regular, routine medical testing.
Can black stool cause anemia?
You can best reduce the risk of complications of black stool and its underlying causes by following the treatment plan you and your health care provider design specifically for you. Failure to seek prompt diagnosis and treatment for black stool can result in life-threatening complications, such as: Anemia.
What is it called when your poop is dark?
An ulcer is an open sore on the inside of your stomach or small intestine. Sometimes these sores bleed. This can make your poop dark. Blood exposed to gastric acids turns black and tarry (sticky). This is called melena and is a sign of an upper gastrointestinal bleed.
What does it mean when you have a black tarry stool?
If you have bleeding in the upper GI tract -- the esophagus, stomach, and duodenum -- you could have black, tarry stools that are called melena. It could be a sign of esophageal and gastric cancers. Treatment for these cancers depends on the stage of the disease and how far it's spread.
What does it mean when you throw up?
Heartburn. Nausea, throwing up, or having vomit that looks like coffee grounds. Some medicines for ulcers lower the amount of acid in your stomach. Others coat and protect it from the damage that stomach acids can cause. Call your doctor if you: See blood in your poop or vomit. Have trouble breathing.
Why is my poop black?
If you notice your poop is black or tarry, it might be due to something as simple as a change in your diet or a new medicine you're taking. Sometimes, though, it's a sign of a medical problem that you don't want to ignore. Even if you think you know why it's happening, always call your doctor if you have black, tarry stools.
What does it mean when you vomit black stuff?
Other symptoms you might get are: Bright red vomit or black stuff in your vomit that looks black like coffee grounds. Weakness. Dizziness or fainting.
What happens if you poop black?
Other side effects of iron supplements are: Stomachache. Nausea.
How to treat cancer of the esophagus?
Treatment for these cancers depends on the stage of the disease and how far it's spread. Options can include surgery, chemotherapy, or radiation. Mallory-Weiss Tear. Intense coughing or vomiting can tear the esophagus and make it bleed, a condition called a Mallory-Weiss tear.
Why does stool color change?
Only rarely does stool color indicate a potentially serious intestinal condition. Stool color is generally influenced by what you eat as well as by the amount of bile — a yellow-green fluid that digests fats — in your stool. As bile pigments travel through your gastrointestinal tract, they are chemically altered by enzymes, ...
Why is my stool red?
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. As a result, bile doesn't have time to break down completely.
What does it mean when you have no bile in your stool?
A lack of bile in stool. This may indicate a bile duct obstruction. Certain medications, such as large doses of bismuth subsalicylate (Kaopectate, Pepto-Bismol) and other anti-diarrheal drugs. Excess fat in the stool, such as due to a malabsorption disorder, for example, celiac disease.
Why is my stool dark?
Stool can become dark if it's discolored by blue or black food pigments, though. Common foods that cause dark stools include blueberries, black licorice, or blue or black-colored candies.
What color should stool be?
In general, stool should be medium to dark brown with a soft to firm texture.
How does stool color affect bowel movements?
The frequency of your bowel movements and the consistency and texture of your stool can change based on your fiber and fluid intake. Also, stool color can be influenced by the pigments in fruits, vegetables -- and the dyes added to foods. Advertisement.
Why is my stool brown?
More water in the stool makes it too loose, and less water can lead to hard, dry stool. The color of normal stool is brown, and diet factors and health problems can influence stool color. For instance, pale or yellow stool can be linked to liver disease or infections, and black or red stool is suggestive of blood in the stool.
Can iron supplements cause black stool?
Iron supplements are notorious for causing dark or black stools, although these supplements are more likely to cause constipation than loose stools. Other medications that can cause dark stools, although not necessarily loose ones, are those that contain bismuth, such as Pepto-Bismol and Kaopectate. Bismuth interacts with sulfur, which is naturally ...
Why is my stool dark?
This type of stool is often dark because it stays in the intestines longer.
What foods make your stool darker?
Activated charcoal supplements. Dark foods, such as black licorice, blueberries, Oreo cookies, blackberries, grape juice, or blueberries. Stool can also appear darker with constipation. Dark green stool from bile that hasn't had time to break down may look black in certain lighting.
What does it mean when your stool is brown?
Bile salts in the intestines give stool its usual brown color. Stool that is light-colored (either pale, white, grey, or clay-colored) could indicate a lack of bile in the stool. A blockage of the bile ducts from gallstones, or a condition affecting your gallbladder, liver, or pancreas, can cause decreased bile output.
Why does my stool change color?
For example, if you are constipated, if your stool is pebble-shaped, or if it sinks quickly, you may simply need to add more fiber to your diet.
Why is my stool green?
3 Iron supplements and food coloring, including green, purple, and blue dye, can also turn feces an emerald color. Conditions that speed up intestinal activity, such as a bowel disorder or food poisoning, can also lead to green stool.
What is the name of the stool that is excreted in small pieces?
Stool excreted in small pieces is sometimes called pebble or pellet stool. 6 Fiber forms a gel in the intestines when it is fermented by bacteria in the colon and combined with water. If there is a lack of fiber holding stool together, it may be shaped like small pebbles.
Why is my stool yellow?
Stool that has suddenly become yellow can also be a sign of an intestinal infection, particularly if you also have diarrhea, fever, flu-like symptoms, or stomach cramps. Giardiasis, a small intestine infection caused by the parasite Giardia lamblia, can also lead to yellow stool or diarrhea. 1.
Causes
Diagnosis
- If you're seeing black stools and can trace it back to a food you ate, that's OK. However, a doctor should be consulted immediately if black stools cannot be traced back to a food, an iron supplement, or Pepto-Bismol. The black color alone is not enough to determine that it is in fact blood that is being passed in the stool. Therefore, a doctor will need to confirm whether there ac…
Symptoms
- Blood that comes from higher up in the digestive tract, such as the esophagus or stomach, may turn stool black, which is called \"melena.\" As the blood passes through the body and interacts with enzymes in the digestive process, the blood changes from red to black. This makes it a bit more difficult to see in or on the stool than if there is red b...
Risks
- If the black stool is accompanied by other symptoms such as feeling faint or actually fainting, dizziness, pain, or vomiting, especially if there's blood in it or it looks like coffee grounds, contacting a doctor immediately is important because it could be a medical emergency. For some people, there may already be a known risk factor for bleeding in the digestive tract. Talk to a doc…
Overview
- Ulcer. An ulcer is a type of sore on the lining of the stomach that can cause bleeding and result in melena. Contrary to popular belief, stomach ulcers are not usually caused by stress or spicy food (although these can aggravate an already existing ulcer). In fact, they are typically caused by an infection with a bacterium called Helicobacter pylori (H. pylori). Antibiotics are normally prescrib…
Signs and symptoms
- Esophageal Varices. Esophageal varices are dilated veins in the wall of the lower esophagus or upper stomach. When these veins rupture, they may cause bleeding, which can cause blood to appear in the stool or in vomit. Esophageal varices are a serious complication resulting from portal hypertension (high blood pressure) brought on by cirrhosis of the liver.
Clinical significance
- Mallory-Weiss Tear. This is a tear in the mucous membrane that joins the esophagus and the stomach. If this tear bleeds, it can result in melena. This condition is fairly rare (only occurring in four of 100,000 people) and may be caused by violent vomiting, coughing, or epileptic convulsions.