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Quick Answer. Hiccups resulting from surgery may be caused by a reaction to anesthesia or happen as a result of abdominal surgery or medical procedures such as a tracheotomy, states Healthline. Using a catheter to access the heart, bronchoscopy or using a stent in the esophagus can also result in long-term hiccups.
Another reason why people get hiccups is the GERD or acid reflux disease. These happen because the acid in the stomach is regurgitated into the esophagus. Temperature Changes Any sudden changes in the temperature of the body, due to any reason, irritate the diaphragm and hiccups are a result of this irritation.