The common reasons for having gas in the throat are eating too much too fast, chronic pharyngitis, reflux esophagitis and so on. 1. Eating too full too fast: If you eat too much food, too fast, will not only cause excess food beyond the digestive tract’s ability to digest, but also lead to a large amount of gas into the digestive tract, food and a large amount of gas buildup, can not be emptied downward within a short period of time, it may be upward to the top of the throat. 2. Chronic pharyngitis: If the mucous membrane of the pharynx produces chronic inflammation, under the long-term stimulation of inflammatory cells, the throat will produce a foreign body sensation, because the patient can not see the physical objects in the throat, it will be mistaken that there is a gas against the throat. 3. Gastroesophageal reflux: If the acidic food in the stomach refluxes into the upper esophagus at the same time, the excessive secretion of gastric acid may stimulate spasm of the diaphragm, resulting in hiccups and throat discomfort. Therefore, if you have gas in your throat, you should go to the hospital and receive treatment from a specialist without delay.