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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.
Overeating or reflux are the most common causes [of hiccups], and the internet is full of other potential causes. In most cases, there is a change in your body (like an overfull stomach) that is communicated to your brain to start the hiccups â¦. Changes to your the brain can also cause hiccups, and some drugs that act on the brain can cause them. Also, brain trauma (such as stroke) can cause severe hiccups.