What are the symptoms of severe flatulence?

Serious flatulence refers to the patient showing upper abdomen or left upper abdomen fullness, belching, upper abdominal distension serious, can show nausea, poor appetite, emaciation and other performance, even can show a long time after eating less caused malnutrition performance. General flatulence serious, should be clear cause flatulence serious reasons, such as chronic gastritis with erosion repeated attacks, or combined with functional dyspepsia, as well as part of peptic ulcer or gastric cancer patients, can show flatulence more serious. We should also be alert to pancreatic diseases, such as chronic pancreatitis patients pancreatic juice reduction, can also show eating greasy food after showing serious abdominal flatulence performance, so need to improve gastroscopy and B ultrasound examination.