What causes gastrointestinal bleeding? 45 possible conditions

Viewing 21 - 40 of 45 results

See a list of possible causes in order from the most common to the least.

21

The Many Sides of Bacterial Gastroenteritis

Bacterial infections are common causes of gastrointestinal infections. This type of infection is also called "food poisoning" and is often caused by poor hygiene or ingesting foods contaminated with bacteria.

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22

Colitis

Colitis is inflammation of the colon, often causing discomfort and pain in the abdomen, as well as other gastrointestinal symptoms. Colitis has many possible causes, which determine the type.

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23

Low Platelet Count (Thrombocytopenia)

A low platelet count, also called thrombocytopenia, affects your blood's ability to clot. This can cause red, purple, or brown bruising, prolonged bleeding, and nosebleeds.

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24

Enteritis

Enteritis is the inflammation of your small intestine. In some cases, the inflammation includes the stomach and large intestine. Ingesting food and water contaminated with bacteria is a leading cause of enteritis...

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25

Kaposi's Sarcoma

Kaposi's sarcoma (KS) is a cancerous tumor. It commonly appears in multiple locations on the skin and around the nose, mouth, genitals, and/or anus, but can also attack the internal organs. It's caused by a virus calle...

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26

Lactose Intolerance

Lactose intolerence occurs when a person's small intestine can't break down lactose, an enzyme found in dairy foods. The condition can cause many gastrointestinal symptoms.

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27

Ischemic Colitis

Ischemic colitis (IC) is inflammation of the large intestine (colon). IC occurs when not enough blood flows to the colon. Abdominal pain is a common symptom. Others are diarrhea, vomiting, and belly tenderness.

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28

Necrotizing Enterocolitis

This condition is considered a medical emergency. Urgent care may be required.

Necrotizing enterocolitis is inflammation and death of intestinal tissue. It may involve just the lining or the entire thickness of the intestine. This very dangerous disease is most common in premature infants.

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29

Hookworm Infections

Hookworms are parasites that affect the small intestine and lungs. The first sign of infection is usually a rash where the parasite entered the skin, followed by diarrhea.

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30

Ebola Virus and Disease

This condition is considered a medical emergency. Urgent care may be required.

Ebola disease is a rare, often fatal illness. One of its late-stage symptoms is a bleeding rash over the entire body.

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31

Anthrax

This condition is considered a medical emergency. Urgent care may be required.

Anthrax is a serious illness caused by a microbe that lives in soil, called Bacillus anthracis. Inhalation may result in cold and flu symptoms; signs of ingestion include nausea and abdominal pain.

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32

Yellow fever

Yellow fever is a serious, potentially deadly flu-like disease spread by mosquitoes. It's found mostly in Africa and South America. Symptoms of stage 3 yellow fever include abdominal pain, vomiting, and jaundice.

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33

Esophagitis

Esophagitis is inflammation of the esophogas that can be caused by acid reflux or certain medications. You may develop a sore throat or heartburn.

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34

Glomerulonephritis

Glomerulonephritis occurs when blood filtering vessels in the kidneys are damaged. This may contribute to kidney failure, which causes fatigue, insomnia, itchy skin, and other symptoms.

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35

Polymyalgia Rheumatica

Polymyalgia rheumatica is an inflammatory disorder that causes pain and stiffness in various parts of the body, including the shoulders, neck, arms, thighs, and hips. The cause of this disorder is unknown.

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36

Proctitis

Proctitis occurs when the rectum becomes inflamed, causing pain and discomfort. It sometimes causes a constant urge to defecate. It's treated with medications, lifestyle changes, and infrequently surgery.

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37

E. coli Infection

E. coli is a type of bacteria normally found in intestines. But certain kinds of E. coli can cause infection and severe symptoms like diarrhea and dehydration.

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38

Celiac Disease (Gluten Intolerance)

Celiac disease is a digestive disorder caused by an immune reaction to gluten. Symptoms vary but can include arthritis, fatigue, and abdominal symptoms.

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39

Christmas Disease (Hemophilia B)

Also called hemophilia B or factor IX hemophilia, Christmas disease is a rare genetic disorder in which your blood does not clot properly. A common symptom is unexplained or excessive bruising.

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40

Amebiasis

Amebiasis is a parasitic infection, common in tropical countries and caused by contaminated water. Symptoms can be severe and usually start one to four weeks after exposure.

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This feature is for informational purposes only and should not be used to diagnose.
Please consult a healthcare professional if you have health concerns.
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