“My baby spits up so often.”This complaint is frequently heard during well child visits. Usually, spitting is not a worrisome problem for parents, infants, or health care providers. In certain cases, however, spitting may be a symptom of underlying gastrointestinal pathology. Therefore, it is the“well baby caretaker”who determines for which patients spitting requires a more extensive workup. One cause of spitting and vomiting in infants and children is gastroesophageal reflux (GER).