Definition
- Gastritis: Inflammation of the stomach lining, which can be acute or chronic and caused by various factors.
- Peptic Ulcer: Refers to an open sore on the lining of the stomach (gastric ulcer) or the first part of the small intestine (duodenal ulcer).
- Helicobacter pylori (H. pylori): A bacterium that lives in the stomach lining and is often associated with gastritis and peptic ulcers.
Pathogenesis
- Gastritis: Can result from exposure to toxic substances (e.g., alcohol, smoking), medications (NSAIDs), infections, autoimmune disorders, or stress.
- Peptic Ulcer: Occurs when the balance between digestive fluids and the protective mechanisms of the stomach lining is disrupted. Often linked to H. pylori infection and prolonged use of anti-inflammatory medications.
Diagnosis
- Gastritis and Peptic Ulcer: Diagnosed through endoscopy and biopsy of the stomach lining.
- H. pylori: Diagnosed using breath tests, blood tests, stool tests, or samples obtained during endoscopy.
Treatment
- Gastritis and Peptic Ulcer:
- Medications to reduce acid production, such as proton pump inhibitors (PPIs).
- For H. pylori infection, eradication therapy using antibiotics.
- Lifestyle changes, including dietary management, avoiding alcohol and smoking, and reducing stress.
Regular medical follow-up is crucial to effectively manage the condition and prevent complications.
Once the sequence reaches dysplasia, removal is endoscopic. See the resection of a lesion in the prepyloric antrum.
Chronic infection is the leading risk factor for gastric cancer. When upper abdominal symptoms persist without any structural finding, functional dyspepsia should be considered.
Frequently asked questions
Sources
- European Society of Gastrointestinal Endoscopy, Management of epithelial precancerous conditions and early neoplasia of the stomach (MAPS III). https://pubmed.ncbi.nlm.nih.gov/40112834/
Content last updated: September 2026 (22/09/2026).

