Gastritis patients have a lot of flatulence may be caused by indigestion, or it may be caused by excessive secretion of gastric acid. 1. Dyspepsia: Gastritis can lead to dyspepsia, which manifests itself as persistent or recurring epigastric discomfort, and also includes postprandial fullness, abdominal distension, belching, early satiety, anorexia, nausea, vomiting, heartburn, retrosternal pain, regurgitation, and so on. 2. Excessive secretion of gastric acid: gastritis can also lead to excessive secretion of gastric acid, which will produce excessive carbon dioxide with the food, resulting in abdominal distension and increased farting. It is recommended to go to the hospital in time to improve the examination to clarify the cause of the disease, and then give targeted treatment or treatment, under the guidance of the doctor for treatment, can be “early detection, early diagnosis, early treatment”, to reduce the adverse effects of the disease.