Possible Causes of Black Stool

There are lots of factors that stools might appear black or tarry with a nasty smell, consisting of eating certain foods or taking iron supplements. However, black stools can likewise be a result of bleeding, and the darker color suggests that the blood could be coming from a point in the upper gastrointestinal tract.

When stools are black or tarry due to blood being present, it is called “melena.” “False melena” describes stools that are dark or black, however actually do not contain any blood.

Black stool isn’t really always due to a big issue. There are lots of factors stool could appear black, and iron supplements or even Oreos might be to blame. This is specifically true for individuals who have had ostomy surgery or a colectomy due to the fact that food is not being absorbed as completely as it remains in people who have not had any abdominal surgery.

Nevertheless, if you have had intestinal bleeding in the past, there is a nasty smell, or the issue goes on for longer than a few days, see your doctor right now.

activated carbon

Activated carbon

False Melena

A black stool caused by food, supplements, medication, or minerals is called “false melena.” It is called “false” due to the fact that the black color is not really due to bleeding. Iron supplements, taken alone or as part of a multivitamin for iron-deficiency anemia, might cause black stools and even green stools. Foods that are dark blue, black or green may likewise cause black stools. Substances that are typically discovered to cause incorrect melena include:

  • Black licorice.
  • Activated carbon.
  • Blueberries.
  • Iron supplements.
  • Lead.
  • Bismuth (Pepto-bismol).

A physician needs to be sought advice from immediately if black stools can not be credited to a benign cause, such as an iron supplement or a food.

How to Detect Melena?

The black color alone is inadequate to figure out that it remains in reality blood that is being passed in the stool.

For that reason, a doctor will need to verify whether there actually is blood in your stool. This can be done in a doctor’s office through a rectal exam. Or, it can be done at home with a package that is used to collect a small stool sample which is then sent out to a lab for evaluation.

Blood in the stool that is dark might be caused by numerous various conditions, including a bleeding ulcer, gastritis, esophageal varices, or a tear in the esophagus from violent vomiting (Mallory-Weiss tear). The tarry look of the stool is from the blood having contact with the body’s digestive juices.

After melena is detected, a physician might purchase other diagnostic tests to identify the cause and the specific location of the bleeding. These tests could include x-rays, blood tests, colonoscopy, gastroscopy, stool culture, and barium research studies.

What are the Causes of Melena?

Bleeding ulcer: An ulcer is a type of sore on the lining of the stomach, which can cause bleeding and lead to melena. Contrary to popular belief, stomach ulcers are not typically caused by stress or hot food (although these can aggravate an already existing ulcer).

In truth, they are usually caused by an infection with a germs called Helicobacter pylori (H. pylori). Antibiotics are typically recommended to remove the infection, and in some cases an acid reducer.

Another cause of stomach ulcers is the long-term use of pain medications called NSAIDs (nonsteroidal anti-inflammatory drugs). NSAIDs can irritate the stomach by deteriorating the lining’s capability to withstand acid made in the stomach. For this same reason, NSAIDs have a negative effect on Crohn’s disease and ulcerative colitis. NSAIDs include common over the counter drugs such as ibuprofen, naproxen sodium, and aspirin. Some NSAIDs are prescribed by physicians. Stomach ulcers caused by NSAIDs typically recover after the offending drug is stopped.

Gastritis: Gastritis is the inflammation of the stomach lining. This inflammation can be caused by alcohol (don’t consume alcohol, alcohol is harmful for health) or food, eating hot foods, smoking cigarettes, infection with bacteria, or by the extended use of NSAIDs. Gastritis can also develop after surgery or injury, or it might be connected with already existing medical conditions.

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 issue arising from portal hypertension (hypertension) caused by cirrhosis of the liver.

Mallory-Weiss tear: This is a tear in the mucous membrane that signs up with the esophagus and the stomach. If this tear bleeds, it can result in melena. This condition is relatively uncommon (only happening in 4 of 100,000 individuals), and might be caused by violent vomiting, coughing, or epileptic convulsions.

What To Do If Your Stool Is Black

If you have black stools that you can not credit to a food or to iron supplements, see your doctor as quickly as possible. A black stool occasionally that always occurs after eating foods that are dark in color is normally absolutely nothing to worry about. If the black color is accompanied by other symptoms such as vomiting, diarrhea, or acute pain, look for medical attention instantly.


We will be happy to hear your thoughts

      Leave a reply

      This site uses Akismet to reduce spam. Learn how your comment data is processed.