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Hiccups are caused when the diaphragm, the respiratory muscle at the base of the chest, gets irritated and spasms. Since a baby's stomach and torso are small, it doesn't take much to fill his tummy to the brim and push it up into the diaphragm. In fact, it's a good thing to see kids get hiccups -- it means they're well fed. --Hagar Scher
Originally published in Parents magazine, October 2006. Updated 2009
The answers from our experts are for educational purposes only. Please always refer to your child's pediatrician and mental health expert for more in-depth advice.