Patients with gastritis can have heartburn. Generally, patients with gastritis mainly present with epigastric pain, epigastric discomfort, abdominal distension, and belching, acid reflux, loss of appetite, nausea, vomiting, and early satiety. Some people drink alcohol or eat irritating foods, such as chili peppers, raw onions, and raw garlic, which cause acute secretion of gastric acid and can cause heartburn. Patients after gastrojejunostomy with major gastric resection also tend to have heartburn, mainly due to the reflux of bile and intestinal fluid from the duodenum through the pylorus to the stomach, and this alkaline reflux fluid stimulates the gastric mucosa to produce inflammation. In addition, patients with incomplete pyloric obstruction can also suffer from heartburn due to reflux of gastric contents into the esophagus and irritation of the esophageal mucosa due to pyloric opacification and increased pressure in the gastric lumen.