The hiccups are caused by indigestion, gastroesophageal reflux disease (GERD), chronic gastritis and other factors. 1. Indigestion: patients may have weakened gastrointestinal function, resulting in food can not be successfully emptied, producing a large amount of gas in the stomach leading to hiccups, but also abdominal distension, early satiety, pain in the upper and middle abdomen and other symptoms. 2. Gastroesophageal reflux disease (GERD): a disease caused by the reflux of gastric contents, belching, bloating, nausea, epigastric pain, burning sensation in the upper abdomen and other symptoms. 3. Chronic gastritis: chronic gastritis can affect the function of the stomach, so it can be accompanied by symptoms of indigestion, followed by the old hiccups, but also can be accompanied by abdominal pain, bloating, nausea, loss of appetite and so on. It is recommended to go to the hospital when you have stomach discomfort and hiccups, and ask the doctor to make a specific judgment to clarify the cause of the disease.