What causes bleeding from intestines?

Bleeding from the intestines, also known as gastrointestinal (GI) bleeding, can have various causes. Here are some common causes:

1. Peptic Ulcers: These are sores that develop in the lining of the stomach (gastric ulcers) or the first part of the small intestine (duodenal ulcers). They can cause abdominal pain and GI bleeding.

2. Inflammatory Bowel Disease (IBD): This group of conditions includes Crohn's disease and ulcerative colitis. IBD causes chronic inflammation and ulceration of the GI tract, leading to abdominal pain, diarrhea, and GI bleeding.

3. Diverticular Disease: Diverticular disease occurs when small pouches (diverticula) develop in the colon. These pouches can become inflamed or infected, leading to diverticulitis, which can cause abdominal pain, fever, and GI bleeding.

4. Colorectal Cancer: Cancer of the colon or rectum can cause GI bleeding. It may also cause changes in bowel habits, abdominal pain, and weight loss.

5. Hemorrhoids: Hemorrhoids are swollen veins in the rectum or anus. They can cause painless rectal bleeding, especially during bowel movements.

6. Anal Fissures: Anal fissures are small tears in the skin around the anus. They can cause pain and bleeding during bowel movements.

7. Infectious Colitis: Infections of the colon, caused by bacteria, viruses, or parasites, can lead to diarrhea, abdominal pain, and GI bleeding.

8. Angiodysplasia: This is a condition where abnormal blood vessels develop in the GI tract, especially in the colon or small intestine. They can rupture and cause GI bleeding.

9. Mallory-Weiss Syndrome: This condition occurs when severe vomiting causes tears in the lining of the esophagus, leading to upper GI bleeding.

10. Gastrointestinal Cancers: Other GI cancers, such as stomach cancer, small intestine cancer, or esophageal cancer, can also cause GI bleeding.

It's important to note that GI bleeding can range from minor, self-limiting episodes to severe and life-threatening conditions. If you experience persistent or significant GI bleeding, it's crucial to seek medical attention for evaluation and appropriate treatment.

Inflammatory Bowel Disease - Related Articles