Duodenal Ulcer: Causes & Symptoms

by Meenakshi Nagdeve last updated -

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According to research, a duodenal ulcer is an affliction that affects nearly 5,000,000 Americans due to the improper functioning of the digestive system and poor eating habits.

What is Duodenal Ulcer?

A duodenal ulcer is a crater in the lining of the small intestine (duodenum). It is usually caused by an infection with Helicobacter pylori bacteria, according to Johns Hopkins Medicine.

Note: Many people usually categorize duodenal ulcers as gastric ulcers, but they are actually two different things. The ulcers which occur in the stomach are called gastric ulcers, while the ones located in the duodenum are called duodenal ulcers. Both duodenal and gastric acids are classified as peptic ulcers.



The most common causes of duodenal ulcers are:

  • Bacterial infections
  • Heavy intake of spicy food
  • Anti-inflammatory drugs
  • Zollinger-Ellison syndrome
  • Extreme stress levels
  • Intake of alcohol


Duodenal ulcers are located in the duodenum and the symptoms can include:

  • Persistent pain in the abdomen
  • Erosion of the stomach and duodenal lining
  • Bloating
  • Nausea
  • Vomiting blood
  • Blood in stools
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About the Author

Meenakshi Nagdeve, Co-Founder, Organic Facts is a health and wellness enthusiast and is responsible for managing it. She has completed the Nutrition And Healthy Living Cornell Certificate Program, Cornell University, US. She holds a Post Graduate Diploma in Management from IIM Bangalore and B. Tech in Metallurgical Engineering and Materials Science from IIT Bombay. Prior to this, she worked for a few years in IT and Financial services. An ardent follower of naturopathy, she believes in healing with foods. In her free time, she loves to travel and taste different types of teas.

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