Hiccups and flatulence can be caused by poor gastric motility or gastritis due to Helicobacter pylori infection. 1. Poor gastric motility: poor gastrointestinal function and insufficient gastric motility will affect the digestion and absorption of food, and then hiccups, flatulence, constipation and other symptoms. 2. Helicobacter pylori infection: a common cause of chronic gastritis, chronic gastritis will have indigestion, bloating, hiccups and other uncomfortable symptoms. If you eat greasy food, it will aggravate your condition. If the symptoms of hiccups and flatulence are not relieved, or accompanied by other symptoms, you should go to the hospital in time to complete the relevant examinations and give targeted treatment after clarifying the cause.