1. What are the causes of hiccups in babies? Hiccups in babies are a reflex breathing movement caused by poor expulsion of gas from the gastrointestinal tract or swallowing too much air. It usually manifests as an intermittent \”uh\” sound, sometimes accompanied by abdominal contractions or vibrations. There are many reasons for this, including eating patterns, imperfect digestive development, and physiological maturity. 2. Eating