Why motion is black

Stool that is visibly black and tarry typically indicates the presence of an acute condition in the upper GI tract. 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, esophageal varices enlarged veins , or a tear in the esophagus from violent vomiting Mallory-Weiss tear.

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, stomach ulcers are usually caused by an infection with bacteria called Helicobacter pylori H. Long-term use of pain medications , known as nonsteroidal anti-inflammatory drugs NSAIDs , are another cause of stomach ulcers. NSAIDs include common over-the-counter drugs, such as ibuprofen, naproxen sodium, and aspirin.

NSAIDs can irritate the stomach by weakening the lining's ability to resist acid made in the stomach. For this same reason, NSAIDs have an adverse effect on Crohn's disease and ulcerative colitis —conditions that cause ulcers and inflammation of the GI tract.

Gastritis is 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. Gastritis that is left untreated can lead to stomach ulcers and other complications.

Some people have no symptoms, while acute, suddenly occurring cases of gastritis may only result in tarry, black stool. Persistent bleeding can lead to more severe symptoms like:. Esophageal varices are enlarged veins in the wall of the lower esophagus or upper stomach. When these veins rupture, they may cause bleeding and lead to blood in the stool or in vomit.

Esophageal varices are serious complications resulting from high blood pressure brought on by cirrhosis of the liver. Most people with esophageal varices experience no symptoms unless the veins rupture. Symptoms of bleeding esophageal varices include:.

Mallory-Weiss tear 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. It only only occurs in about seven out of , people in the US and may be caused by violent vomiting, coughing, or epileptic convulsions. Like other conditions that cause melena, symptoms of a Mallory-Weiss tear may not be obvious.

Along with tarry, black stool, some people may experience any of the following:. Blood in the stool can be a serious concern. Blood in your bowel movements is usually caused by one of these conditions:. Doctors may need to examine a sample of your stool or may need to insert a camera into your GI track to determine where the blood is coming from. Stomach ulcers caused by and infection may be treated with antibiotics. Your healthcare provider may also recommend an acid reducer. If your doctors suspects gastritis, they may prescribe antacids or proton pump inhibitors , antibiotics that treat H.

If these treatments fail to resolve your symptoms, your healthcare provider may order an upper endoscopy to take a closer look at your stomach and small intestine. Esophageal Varices requires immediate medical care to help stop the bleeding. Elastic bands may be wrapped around the varices to stop the flow of blood.

Stents , tubes inserted to manage blood flow, may be used to lower blood pressure. That can reduce the amount of bleeding. In the case of a Mallory-Weiss tear, the tear heals on its own for most people. If it does not resolve itself, you may need treatment to seal the lesion. This may either take the form of a medication that is injected internally, or a type of heat therapy known as electrocoagulation.

Stool that appears black is not always a sign of a bigger health problem. Your stool can look black as a result of food or iron supplements you have eaten. If that's the case, the color will return to normal within a day or so. If it doesn't, and if you cannot trace it back to something you have eaten, ask yourself:. If you answered yes to one or more of these questions, or if you're experiencing symptoms like nausea, vomiting, or lightheadedness, you should contact your doctor.

Though it may be surprising to see, occasional black stool is not something to worry about so long as it occurs after you eat dark-colored foods or take an iron supplement. That said, if black or tarry stools cannot be attributed to something you have consumed, or you simply feel like something is off, it's best to get checked out. Some of the conditions that cause GI bleeding can be life-threatening unless treated promptly.

Not necessarily. Dark-colored stool may just be the result of food you ate or supplements you took. However, if you notice blood in your bowel movement, if you vomit blood, or if you feel dizzy, you should contact your doctor right away. Liver disease can damage the veins that move blood into the liver and may cause pressure to build up in these veins.

The veins then burst, allowing blood to get into your GI tract. This bleeding can be serious, so you should talk to a doctor right away. This is called meconium, and it's totally normal.

Having stool that is black and tarries with consistency can be pretty alarming. In truth, almost any color that deviates from the normal brown can be cause for concern. The digestive process begins, of course, with the consumption of food. As food is chewed, the combination of teeth and saliva mash it into an easily-swallowable pulp that is then pushed into the esophagus by the tongue.

After the masticated food moves down your esophagus and into the stomach, powerful stomach muscles work with digestive juices to break down the food into a semi-fluid substance called chyme.

This chyme enters then enters the small intestine, where it mixes with additional digestive juices from the liver, pancreas, and intestines; these juices contain enzymes that aid in digestion and the absorption of nutrients. As the chyme is pushed along the small intestine a distance of 20 feet! The final stage of digestion happens when the resulting semi-fluid waste materials from the small intestine enter the large intestine otherwise known as the colon.

This waste material includes fluid, undigested food, and discarded cells that are either damaged or degraded. In the colon, most of the water is absorbed as solid stool is formed. The stool makes its way through the colon through a series of autonomic muscle contractions called peristalsis and then out through the rectum and anus.

It is because of the complexity involved in all the digestive steps described above that many different factors come into play when stool is formed. Those factors all contribute to the overall health of the digestive system and the resulting stools. Color, along with texture, size, shape, and solidness, is one way of determining digestive health.

Much of the time, the color comes from dietary content; what and how much you eat, what you drink, etc. Yet different stool colors can also come about because of disease or as a side effect of some underlying condition.

While there are no hard and fast rules about stool color and the precise cause, there are some common connections that doctors have identified. Here are some of the possible stool colors that people can experience and their possible related causes:.

But what about black stool? One of the most concerning reasons why stool might be black is bleeding in the upper gastrointestinal tract. The stool that results from this kind of bleeding is called melena, and it refers both to the black color and the tarry consistency. The hemoglobin in the blood that makes its way through the gastrointestinal tract is reacted upon by various digestive enzymes and intestinal bacteria; the net effect of this process is black and tarry stool.

There are numerous potential causes of this kind of bleeding, but one of the most common causes is having peptic ulcers, which are painful sores that can develop on the inner lining of your stomach or other parts of your digestive tract. When sufficiently irritated, these sores can bleed, and the blood will make its way through the rest of the digestive tract and become incorporated into the stool. These polyps are small growths that form in the large intestine.

They are not necessarily cancerous, but they can become cancerous over time. NIDDK report that these problems can include esophageal varices and gastroesophageal reflux. Liver issues can cause esophageal varices, which are enlarged veins in the esophagus. Treatment will focus on stopping the bleeding and resolving the underlying condition that is causing the esophageal varices.

If a person experiences gastroesophageal reflux frequently, they may have gastroesophageal reflux disease GERD. The key causes are complications from certain medications, smoking, or increased pressure in the abdomen. This pressure can result, for example, from being overweight or pregnant. A person can often manage GERD by avoiding certain foods and not overeating.

A doctor may also prescribe medications. NIDDK note that the long-term use of some drugs, such as ibuprofen and aspirin , can cause stomach ulcers. A bacterial infection can also be a cause. If a doctor thinks that drugs such as ibuprofen or aspirin are causing stomach ulcers, treatment usually involves no longer using these pain relievers. However, there is no reason for people to avoid foods that have this effect if they are not experiencing any other symptoms.

If bleeding in the gastrointestinal tract is responsible for black, tarry stools, a doctor will need to diagnose the exact cause of this. Many gastrointestinal issues are treatable. They may recommend that the person avoids certain foods.