Gastritis can manifest as epigastric pain, bloating, nausea, and vomiting. Gastric ulcers are characterized by burning pain in the stomach, nausea, vomiting, acid reflux and other symptoms. 1. Gastritis: If acute gastritis usually manifested as epigastric pain, abdominal distension, nausea, vomiting, loss of appetite and other symptoms, the more serious may appear vomiting blood, black stool, acidosis and other symptoms; if chronic gastritis, most of the symptoms are not obvious, may appear to have postprandial fullness and bloating, acid reflux, nausea and other indigestion symptoms. 2. Gastric ulcer: It is characterized by burning pain in the stomach, which cannot be alleviated even after eating, and most of the attacks occur half an hour or one hour after meals, and may also be characterized by nausea, vomiting, acid reflux, weight loss and other symptoms. If discomfort occurs, it is recommended to consult a doctor in a timely manner, under the guidance of the doctor to clarify the cause of the disease and targeted treatment, do not take medication on their own, so as not to delay the condition.