It's extremely common for infants to spit up, and in most cases, the symptoms go away on their own, pediatrician Aaron Carroll writes. Gastroesophageal reflux disease is rare and involves severe symptoms, but the diagnosis became more common, tripling from 2000 to 2005 and leading to increased treatment, including with drugs that were shown to be ineffective in a 2009 trial. Another study found that parents who were told their child had a diagnosis of GERD were more likely to want drug treatment even when informed the medications didn't work.

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