The causes of bloating around the belly button include functional diseases, organic lesions, dietary factors, etc. 1. Functional diseases: dyspepsia and gastrointestinal disorders can cause intestinal distension and pain caused by intestinal dilatation. 2. Organic lesions: including acute and chronic enteritis or incomplete intestinal obstruction, abdominal pain, abdominal distension, sometimes accompanied by nausea, vomiting and other symptoms. In severe cases, anal defecation and bowel movement will be stopped, resulting in complete intestinal obstruction. 3. Dietary factors: Consumption of too cold, stimulating and spicy food leads to spasmodic pain in the intestines, intestinal flatulence and abdominal pain. Regular bloating and pain around the navel must go to the regular hospital to find the cause of the disease, and according to the cause of the system standardized treatment.