Pain in babies, and whether babies feel pain, has been a large subject of debate within the medical profession for centuries. Prior to the late nineteenth century it was generally considered that babies hurt more easily than adults.[1] It was only in the last quarter of the 20th century that scientific techniques finally established babies definitely do experience pain – probably more than adults – and developed reliable means of assessing and of treating it. As recently as 1999, it was widely believed by medical professionals[2] that babies could not feel pain until they were a year old,[3] but today it is believed newborns and likely even fetuses beyond a certain age can experience pain.