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A member asked:
What are hiccoughs caused by?
A doctor has provided 1 answer
Your diaphragm: A hiccup is a sudden involuntary contraction of the diaphragm. They can happen if the phrenic nerve (the one that innervates the diaphragm) is irritated, but most often we have no idea why hiccups occur.
Answered 10/3/2016
5.6k views
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Hiccups on and off all day long. Is this a cause for concern?
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