Hippocratic Oath
The Hippocratic Oath is an ancient Greek medical text that sets out duties for physicians and their students. Traditionally associated with Hippocrates, it is usually dated to around the fourth century BCE, but its precise authorship and date are uncertain. Its themes include patient benefit, professional conduct, confidentiality and teaching; the text and its later adaptations differ from modern medical pledges.
A code of professional duties
The text links medical practice to obligations between teachers and students as well as duties to patients. It calls on a physician to use judgment for the patient's benefit, avoid harm and injustice, and keep private information from being disclosed. The classical version also contains rules reflecting the social and medical setting in which it was written, including limits on certain treatments and on conduct in patients' homes. These provisions make the Oath a historical document, not a complete statement of present-day medical ethics.
Versions and influence
The Oath was transmitted and rewritten in settings shaped by different religious and cultural values. Its enduring reputation helped make it a symbol of physicians' ethical responsibilities, but there has never been just one unchanged form used in every place or era. Contemporary medical schools and professional bodies may use revised versions, locally written pledges or other codes instead of the classical text. The word 'Hippocratic' therefore often describes a tradition of professional ideals as well as the ancient document itself.
The phrase ‘first, do no harm’
The maxim 'first, do no harm' is widely associated with the Oath, but that exact phrase does not appear in the classical text. A published translation instead describes providing care for patients' benefit and avoiding harm or injustice. The distinction matters: the familiar slogan is a later shorthand for an ethical ideal, not a verbatim line that can be attributed to the ancient document.
Modern physician pledges
Modern professional ethics address responsibilities that are not expressed in the same way in the ancient text, including respect for patient autonomy and human rights. One example is the World Medical Association's Declaration of Geneva, adopted in 1948 and amended in 2017. It is a contemporary physician's pledge, not a transcription of the Hippocratic Oath. Its promises include placing a patient's health and well-being first, respecting dignity and confidentiality, and refusing to use medical knowledge to violate human rights.
Key facts
- Origin
- An ancient Greek medical text, traditionally attributed to Hippocrates but of uncertain authorship and exact date.
- Central themes
- Patient benefit, professional conduct, confidentiality, and duties between teachers and students.
- Common misconception
- The exact phrase 'first, do no harm' does not appear in the classical Oath.
- Modern example
- The World Medical Association's Declaration of Geneva was adopted in 1948 and amended in 2017.
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References
- 1.Greek Medicine
U.S. National Library of Medicine, History of Medicine Division · other · reliability: high · retrieved 15 October 2026
Supports: Curated historical overview that presents the Hippocratic Oath, its place in Greek medicine, a translation and the clarification that the familiar 'First, do no harm' wording is not explicit in the text.
- 2.Hippocratic oath Definition, Summary, & Facts
Encyclopaedia Britannica · other · reliability: high · retrieved 15 October 2026
Supports: Reference overview of the Oath's attribution, estimated date, ethical themes, classical text and distinction from contemporary versions.
- 3.The History of the Hippocratic Oath: Outdated, Inauthentic, and Yet Still Relevant
The Einstein Journal of Biology and Medicine · other · reliability: high · retrieved 15 October 2026
Supports: Historical commentary on the Oath's uncertain authorship and date, later adaptations, and changing role in medical education.
- 4.WMA Declaration of Geneva
World Medical Association · other · reliability: high · retrieved 15 October 2026
Supports: Primary source for the Declaration's adoption and amendment history and for its modern physician's pledge.
- 5.The Revised Declaration of Geneva: A Modern-Day Physician’s Pledge
JAMA · other · reliability: high · retrieved 15 October 2026
Supports: Medical-journal viewpoint discussing the World Medical Association's 2017 revision of the Declaration of Geneva.
References are suggested by the research engine and may be incomplete. Unverified URLs are omitted rather than guessed.
Article history
- Version 115 October 2026 · EditorCreated by Zapia