Ulcers are sores on the lining of your stomach or small intestine. Sores also could be on your esophagus (throat). Most ulcers are located in the small intestine. These ulcers are called duodenal ulcers. Stomach ulcers are called gastric ulcers. Ulcers in the throat are called esophageal ulcers. Most ulcers are cause by Helicobacter pylori […]