Once the bloating occurs in the afternoon, it is mostly related to indigestion caused by diet. Eating too much at noon or eating a cold or spicy diet can lead to bloating. There is no simple activity after eating, directly sitting still or taking a nap, so that the food is not digested and causes abdominal distension. Irregular and unreasonable diet in daily life, overeating, skipping breakfast, and less exercise in general lead to slower gastrointestinal motility, poor food digestion and abdominal distension. It may also be caused by gastrointestinal diseases, such as chronic gastritis, gastric ulcer, gastroesophageal reflux disease, functional dyspepsia, etc., which can easily lead to abdominal distension after meals. If this condition occurs frequently and does not ease after improving your lifestyle, it is recommended that you can go to the hospital for abdominal ultrasound or gastrointestinal endoscopy to clarify the cause and provide timely treatment.