Introduction - What are Duodenal Ulcers

Duodenal ulcers are open sores that develop on the lining of the duodenum, which is the first part of the small intestine. They are a type of peptic ulcer, along with gastric ulcers that occur in the stomach. Duodenal ulcers are quite common and can cause various symptoms and complications if left untreated. They are typically caused by the bacteria Helicobacter pylori (H. pylori) or the long-term use of nonsteroidal anti-inflammatory drugs (NSAIDs). Other risk factors include smoking, excessive alcohol consumption, and high stress levels.