Stress can sometimes contribute to ulcers, but it's not the direct cause. Ulcers are often caused by infection with H. pylori bacteria or long-term use of NSAIDs. However, stress might worsen symptoms. Have you been experiencing any symptoms that made you curious about this? It can be helpful to connect with a healthcare provider if you're concerned. What's been stressing you out lately? I'm here to chat if you want to share.