Newborn heart murmurs are detected during the routine newborn and infant physical examination. The rates of heart murmurs recorded in the literature vary from 0.6-8.6% (Yoon et al., 2020). The same systematic review suggests that around 37% of these babies have congenital heart disease. The number of heart murmurs at Musgrove Park Hospital (MPH) remained approximately static between 2018-2020 and then doubled in 2021. A service evaluation was proposed to investigate possible reasons for the increase.