The Hippocratic Oath is an oath of ethics historically taken by physicians. It is one of the most widely known of Greek medical texts. In its original form, it requires a new physician to swear, by a number of healing gods, to uphold specific ethical standards. The oath is the earliest expression of medical ethics in the Western world, establishing several principles of medical ethics which remain of paramount significance today. These include the principles of medical confidentiality and non-maleficence. As the foundational expression of certain principles that continue to guide and inform medical practice, the ancient text is of more than historic and symbolic value. It is enshrined in the legal statutes of various jurisdictions, such that violations of the oath may carry criminal or other liability beyond the oath's symbolic nature.
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Text of the oath
The original oath was written in Ancient Greek, between the fifth and third centuries BC. Although it is traditionally attributed to the Greek doctor Hippocrates and it is usually included in the Hippocratic Corpus, modern scholars do not regard it as having been written by Hippocrates himself. The oldest manuscript containing the oath dates to roughly the 10th–11th century, held in the Vatican Library, although papyrus fragments of the oath have been found as early as the 3rd century AD.
Below is the Hippocratic Oath, in Ancient Greek, from the 1923 Loeb edition, followed by the English translation:
Context and interpretation
The oath is arguably the best known text of the Hippocratic Corpus, although most modern scholars do not attribute it to Hippocrates himself, estimating it to have been written in the fourth or fifth century BC. Its general ethical principles are also found in other works of the Corpus: the work entitled Physician mentions the obligation to keep the "holy things" of medicine within the medical community (i.e. not to divulge secrets); it also mentions the special position of the doctor with regard to his patients, especially women and girls. In antiquity, the punishment for breaking the Hippocratic oath could range from a penalty to losing the right to practice medicine. However, several aspects of the oath contradict patterns of practice established elsewhere in the Corpus. Most notable is its ban on the use of the knife, even for small procedures such as lithotomy, even though other works in the Corpus provide guidance on performing surgical procedures.
Euthanasia
The oath appears to prohibit physicians from administering lethal drugs in all cases, including when requested by a patient. But ancient evidence suggests that physicians did not universally observe such a ban. Scholars disagree about what the prohibition was specifically intended to prevent. The phrasing has been variously interpreted as a prohibition of physician-assisted suicide, participation in judicial executions, murder (including political assassination), or any general use of medical knowledge to cause death.
Abortion
In the earliest surviving reference to the oath, written in 43 AD, Scribonius Largus was adamant that it forbade abortion. In the 1st or 2nd century AD work Gynaecology, Soranus of Ephesus wrote that one party of medical practitioners followed the oath and banished all abortifacients, while the other party—to which he belonged—was willing to prescribe abortions, but only for the sake of the mother's health. William Henry Samuel Jones believes that, although the oath prohibited abortions, they may not have been condemned under all circumstances. John M. Riddle argues that because Hippocrates specified pessaries, he only meant pessaries and therefore it was acceptable for a Hippocratic doctor to perform abortions using oral drugs, violent means, a disruption of daily routine or eating habits, and more. Other scholars, most notably Ludwig Edelstein, believe that the author intended to prohibit any and all abortions. It is also possible the ban means forbidding the women specifically from deciding to have an abortion, limiting the right of that decision to the men. Olivia De Brabandere writes that regardless of the author's original intention, the vague and polyvalent nature of the relevant line has allowed both professionals and non-professionals to interpret and use the oath in several ways. While many Christian versions of the Hippocratic Oath, particularly from the Middle Ages, explicitly prohibited abortion, the prohibition is often omitted from many oaths taken in US medical schools today, though it remains controversial.
Religious themes
The oath stands out among comparable ancient texts on medical ethics and professionalism through its heavily religious tone, a factor which makes attributing its authorship to Hippocrates particularly difficult. Phrases such as "but I will keep pure and holy both my life and my art" suggest a deep, almost monastic devotion to the art of medicine. He who keeps to the oath is promised "reputation among all men for my life and for my art". This contrasts heavily with Galenic writings on professional ethics, which employ a far more pragmatic approach, where good practice is defined as effective practice, without reference to deities. The oath's importance among the medical community is nonetheless attested by its appearance on the tombstones of physicians, and by the fourth century AD it had come to stand for the medical profession. The oath continued to be in use in the Byzantine Christian world with its references to pagan deities replaced by a Christian preamble.
"First do no harm"
Although it is often said that "First do no harm" (Latin: Primum non nocere) is a part of the original Hippocratic oath, no such phrase from which "First" or "Primum" can be translated appears in the text of the original oath, although a similar intention is vowed by, "I will abstain from all intentional wrong-doing and harm". Another related phrase is found in Epidemics, Book I, of the Hippocratic school: "Practice two things in your dealings with disease: either help or do not harm the patient" and it likely took shape from longstanding popular nonmedical expression.
Modern versions and relevance
The Hippocratic Oath has been eclipsed as a document of professional ethics by more extensive works. The first example in modern times was by Thomas Percival at Manchester Royal Infirmary, who published a code of 'medical ethics' in 1803. It was then adapted by other medical associations, such as the American Medical Association's Code of Medical Ethics (first adopted in 1847) and the British General Medical Council's Good Medical Practice. These documents provide a comprehensive overview of the obligations and professional behaviour of a doctor to their patients and wider society. Doctors who violate these codes may be subjected to disciplinary proceedings, including the loss of their license to practice medicine. The lengthiness of these documents has made their distillations into shorter oaths an attractive proposition. In light of this fact, several updates to the oath have been offered in modern times, some facetious.
In 1948, the World Medical Association (WMA) drafted a medical oath, called the Declaration of Geneva. "During the post World War II and immediately after its foundation, the WMA showed concern over the state of medical ethics in general and over the world. The WMA took up the responsibility for setting ethical guidelines for the world's physicians. It noted that in those years the custom of medical schools to administer an oath to its doctors upon graduation or receiving a license to practice medicine had fallen into disuse or become a mere formality". In Nazi Germany, medical students did not take the Hippocratic Oath, although they knew the ethic of "nil nocere"—do no harm.
In 1964, Louis Lasagna, Academic Dean of the School of Medicine at Tufts University, wrote a modern version of the Hippocratic Oath. It omitted the prayer while focusing on "utmost respect for human life from its beginning", making it a more secular obligation, not only to be taken in the presence of any gods, but before people. This version is still in use today by many US medical schools:
I swear to fulfill, to the best of my ability and judgment, this covenant:
I will respect the hard-won scientific gains of those physicians in whose steps I walk, and gladly share such knowledge as is mine with those who are to follow.




