Since the beginning of the practice of medicine, the Hippocratic Oath has been used to ensure that medicine remains oriented toward its true purpose: “First, do no harm.” This oath presupposes that medicine itself is not a boundless good, that it must be kept in check. Often we forget that it is possible for medicine to cause harm, because it brings us so much good. It is the solution to so many problems and brings healing to those who are suffering. But it is not the solution to every problem. The definition of what constitutes harm has changed through different centuries and cultures. How does our society define harm, and how should we as individuals define it?