causes and symptoms of ulcer
An ulcer may or may not have symptoms. When symptoms occur, they may include: 1  A gnawing or burning pain in the middle or upper stomach between meals or at night. 2  Bloating. 3  Heartburn. 4  Nausea or vomiting.
Common symptoms of a duodenal ulcer. You may experience duodenal ulcer symptoms daily or just once in a while. At times any of these abdominal symptoms can be severe: 1  Abdominal bloating. 2  Belching. 3  Burning stomach or upper abdominal pain that may be severe. 4  Feeling of fullness. 5  Loss of appetite. 6  Nausea with or without vomiting. 7  Unexplained weight loss.
Other causes of duodenal ulcer include agents that can cause inflammation of the stomach or duodenal lining, including alcohol, tobacco, or medications such as nonsteroidal anti-inflammatory drugs (NSAIDs). Severe illness and radiation therapy have also been associated with duodenal ulcer.