Blood in stool, Diarrhea: 15 Possible Causes
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What causes blood in stool and diarrhea? 15 possible conditions

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

1

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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2

Ulcerative Colitis

Ulcerative colitis is an inflammatory bowel disease. It occurs when the lining of the large intestine (colon or bowel) and the rectum become inflamed.

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3

Colonic (Colorectal) Polyps

Colonic polyps are growths that appear on the surface of the colon. Learn about colonic polyp symptoms, causes, treatment, and prevention.

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4

Viral Gastroenteritis

Viral gastroenteritis, also known as the stomach flu, is caused by a number of different viruses. Its symptoms usually last for two to three days.

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5

Food Poisoning

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

Food poisoning occurs when you consume foods contaminated with bacteria, viruses, or parasites. Symptoms are usually uncomfortable but not severe.

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6

Colorectal (Colon) Cancer

Colorectal cancer is a cancer that starts in the rectum or colon, located in the lower portion of the digestive system.

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7

Colitis

Colitis is inflammation of the colon. Read about the different types and associated symptoms.

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8

Crohn’s Disease

Crohn's disease is a chronic bowel disease that causes severe inflammation of the digestive tract. It is associated with abdominal pain, diarrhea, and may affect your quality of life. Crohn's disease is characterized b...

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9

Diverticulitis

Diverticula are bulging sacs that can appear in the lining of your large intestine. Diverticulitis occurs when these sacs get acutely infected or inflamed.

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10

Necrotizing Enterocolitis

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

Necrotizing enterocolitis occurs when the intestinal tissue becomes damaged and dies. Learn about its symptoms, causes, and how it's diagnosed.

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11

Amebiasis

Amebiasis is a parasitic infection of the intestines commonly contracted in tropical regions.

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12

Shigellosis

Shigellosis is a bacterial infection that affects the digestive system. The Shigella bacterium is spread through contact with contaminated feces.

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13

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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14

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.

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15

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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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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