What causes gastrointestinal bleeding and nausea? 27 possible conditions

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

1

Stomach Ulcer

Stomach ulcers are painful sores in the stomach lining or small intestine. They occur when the mucus that protects the stomach from digestive juices is reduced.

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2

Peptic Ulcer

Peptic ulcers are sores that develop in the lining of the stomach, esophagus, or rarely in small intestine. They are usually caused by H. pylori, excessive NSAID or alcohol usage, smoking, or stomach cancer.

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3

Types of Acid Reflux

Acid reflux symptoms are caused when stomach contents flow up from the stomach back into the esophagus, causing symptoms like heartburn, stomach pain, and burping.

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4

Gastritis

Gastritis is acute or chronic inflammation of the protective lining of the stomach. It's often caused by the bacterium H. pylori, but can also be the result of excessive NSAID, alcohol, or cocaine consumption.

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5

Cirrhosis

Cirrhosis is severe scarring and poor function of the liver caused by long-term exposure to toxins such as alcohol or viral infections. Certain medications and disorder can also cause cirrhosis.

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6

Alcoholic Liver Disease

Damage to the liver from excessive drinking can lead to ALD. Years of alcohol abuse cause the liver to become inflamed and swollen. This damage can also cause scarring known as cirrhosis. Cirrhosis is the final stage o...

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7

Colorectal (Colon) Cancer

Colorectal cancer is a cancer that originates in the rectum or colon. Both of these organs are located at the lower portion of your digestive system. The colon is at the end of the large intestine and the rectum is a...

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8

Bleeding Esophageal Varices

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

Bleeding esophageal varices occur when swollen veins in your lower esophagus rupture and bleed due to excess pressure. This condition is a medical emergency and must be dealt with promptly.

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9

Shigellosis

The number one symptom of shigellosis, a bacterial infection, is diarrhea. Its symptoms vary in intensity, so you can have this infection and not know it.

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10

Intussusception

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

Most common in boys, intussusception occurs when a portion of the intestines become enfolded, causing a blockage. Symptoms include abdominal pain, vomiting, bloody stools, and others. It is potentially life-threatening.

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11

Esophageal Cancer

Esophageal cancer occurs when a malignant (cancerous) tumor forms in the lining of the esophagus, which is the muscular tube responsible for moving food from the throat to the stomach. As the cancer grows, it can affec...

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12

Stomach Cancer (Gastric Adenocarcinoma)

Gastric cancer forms inside the stomach. Symptoms include pain or fullness in the stomach, nausea, and dark stool.

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13

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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14

Diverticulitis

Diverticulitis occurs when the bulging sacs that usually appear in the lining of the large intestine get infected or inflamed. This usually causes abdominal tenderness on the lower left side, nausea, and diarrhea.

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15

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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16

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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17

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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18

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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19

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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20

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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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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