Most ulcers can be attributed to Helicobacter Pylori but that's far from the only cause. Also, there are different types of ulcers. For peptic ulcers (https://

Most ulcers can be attributed to Helicobacter Pylori but that's far from the only cause. Also, there are different types of ulcers. For peptic ulcers (https://www.niddk.nih.gov/health-information/digestive-diseases/peptic-ulcers-stomach-ulcers/symptoms-causes https://www.niddk.nih.gov/health-information/digestive-disea...) long-term use of nonsteroidal anti-inflammatory drugs (NSAIDs), such as aspirin NIH external link and ibuprofen NIH external link "an infection with the bacteria Helicobacter pylori (H. pylori) rare cancerous and noncancerous tumors in the stomach, duodenum, or pancreas(known as Zollinger-Ellison syndrome) Sometimes peptic ulcers are caused by both NSAIDs and H. pylori."