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Peptic Ulcers and Erosions in Children at a Pediatric Unit in Turkey. OBJECTIVE: To study the characteristics of peptic ulcer and erosion in pediatric patients. METHODS: Over a period of seven years, 1,026 children underwent upper gastrointestinal endoscopy in our pediatric gastroenterology unit. RESULTS: Peptic ulcers and erosions were found in 59 (7.2%) patients [ulcers in 42 (5.1%)and erosions in 17 (2.1%)]. Thirty (50.9%) children presented with acute upper gastrointestinal bleeding. Helicobacter pylori positivity was found in 27 patients (45.8%), and ulcerogenic medication use was found in 13 (22%) patients. CONCLUSION: The main risk factors for childhood peptic ulcer and erosions were H. pylori infection and non-steroidal anti-inflammatory drug use.