What are the main symptoms of duodenal ulcer?

The main symptoms of duodenal ulcer include: 1. Abdominal pain: Often presents as epigastric pain with various characteristics, such as dull pain, distension pain, or severe pain. The pain typically occurs when the stomach is empty or during hunger, and it follows a clear rhythmic pattern. It often starts several hours after a meal and is relieved by eating again. 2. Dyspepsia: Symptoms may include decreased appetite, epigastric discomfort, abdominal distension, and belching. Some patients frequently eat to relieve the pain, which can lead to weight gain. 3. Acid regurgitation and heartburn: Characterized by the reflux of acidic fluid from the stomach without food content, causing a burning sensation behind the breastbone, increased salivation, and acid reflux. These are common symptoms in patients with duodenal ulcers. 4. Other symptoms: In severe cases, gastrointestinal bleeding may occur, presenting as hematemesis (vomiting blood) or melena (black tarry stools). Patients may also experience symptoms of anemia such as palpitations, fatigue, and dizziness.