Gastritis can usually be categorized into two main types: acute gastritis and chronic gastritis, and clinical symptoms vary from one gastritis to another. The more common symptoms are: abdominal pain, bloating, acid reflux, loss of appetite, nausea, vomiting and so on. 1. Acute gastritis: mainly manifested as epigastric discomfort, abdominal distension, anorexia, nausea, satiety, vomiting and so on. Generally, it can be recovered in a short period of time through rehydration, abstaining from foods and medicines that stimulate the stomach, medication and sufficient rest. 2. Chronic gastritis: most patients do not have obvious symptoms, some patients have epigastric discomfort, dull pain, fullness, a few patients have dizziness, fatigue, weight loss and so on. Gastritis is caused by more causes and more symptoms, it is recommended that patients with gastritis go to the hospital in a timely manner to clarify the cause of the disease and follow the doctor’s instructions for treatment.