The incidence of infantile hypertrophic pyloric stenosis nearly halved from 2005 to 2017: analysis of German administrative data

German national data reveals infantile hypertrophic pyloric stenosis incidence nearly halved between 2005-2017, declining from 2.96 to 1.63 per 1000 live births in boys and 0.64 to 0.28 in girls. The continued decline beyond initial millennium observations suggests unidentified environmental or practice factors warrant investigation.