Causes of Hiccups in Newborns Hiccups in newborns are very common, especially after feeding. This is because newborns have a relatively short esophagus and a small appetite, which makes them prone to delayed eating and difficulty swallowing. At the same time, the gastrointestinal function of newborns is not perfect enough, which can easily lead to gas accumulation and cause hiccups. In addition, newborns sometimes suffer from hiccups due to intrauterine hypoxia, abnormal fetal position, difficult delivery and other reasons. How to prevent hiccups in newborns. In order to prevent hiccups in newborns, we can take the following measures: 1. Feeding