There are several reasons for always wanting to hiccup: 1. gastritis, a common disease of the digestive system, can cause hiccups in addition to bloating, loss of appetite, physical weakness and nausea. 2. indigestion, also one of the causes of hiccups, hiccup symptoms after eating, as well as abdominal pain, bloating, nausea and vomiting. 3. impaired gas absorption in the gastrointestinal tract, many gases in the abdominal cavity are absorbed by the intestinal vessels and then If the gas absorption in the gastrointestinal tract is impaired, it will lead to hiccups. 4, swallowing too much air when eating, the gas will be squeezed out when talking into the stomach, if too much air is swallowed when eating, the air and food will be mixed together and it will be difficult to be expelled from the body in the gastrointestinal tract, causing abdominal flatulence and leading to hiccups.