a wordInformed consent
also: consent · valid consent · consent to treatment
Lawyers call it a doctrine. Hospitals call it a form. The two are not the same object, and abroad it is usually the form that arrives.
A patient's agreement to a procedure, given after being told what it involves, what it risks and what the alternatives are. It is a doctrine about a conversation, evidenced by a document, and the document travels much better than the conversation does.
First seen. c. 1300 for consent; 1957 for the phrase in an American decision
Feeling together is a high bar. A signature is not evidence that it happened. Cited · etymonline-consent
The story Cited
The principle is older than the phrase. In Schloendorff v. Society of the New York Hospital, 211 N.Y. 125, decided on 14 April 1914, Cardozo put it as a right: every adult of sound mind decides what is done with their own body, and a surgeon operating without consent commits an assault. Research ethics reached the same place from the other direction — the Nuremberg Code of 1947 opens "The voluntary consent of the human subject is absolutely essential", and the World Medical Association's Declaration of Helsinki, adopted in June 1964 and amended as recently as 2024, carries it into research practice.
What happens to the doctrine across a language barrier has been measured, in a country with interpreters on site. Schenker and colleagues found that charts of English-speaking patients at a US hospital with on-site professional interpreter services were more likely than those of patients with limited English to carry full documentation of informed consent: 53% against 28%.
Inference — that is the floor, not the ceiling. It is what a consent process looks like where interpreters are employed, the patient can complain to a regulator, and a lawyer can be found locally. A consent signed on arrival, in a second language, hours before surgery, has none of those three.
How it works Inference
Three things make a consent process readable from outside: whether the conversation happened before the flight or after it, whether it happened in a language the patient reads, and who was in the room when the alternatives were discussed. What a broker's website said months earlier is marketing, and is not part of it.
Today Inference
As of 17 September 2026 the only systematic evidence on this in the cross-border trade is content analysis of what intermediaries publish, not observation of consent conversations. Nobody audits the conversation.
The particulars
| region | Everywhere |
|---|---|
| confidence | high · updated 2026-09-17 |
What it connects to
Pages that point here
Sources
- consent (n.), consent (v.) — etymology — Online Etymology Dictionary, compiled by Douglas Harper · link (read 2026-09-17)
- Salgo v. Leland Stanford Jr. University Board of Trustees, 154 Cal. App. 2d 560, 317 P.2d 170 (Cal. Ct. App., 22 October 1957) — CourtListener, Free Law Project · link (read 2026-09-17)
- Schloendorff v. Society of the New York Hospital, 211 N.Y. 125, 105 N.E. 92 (N.Y. Court of Appeals, 14 April 1914) — CourtListener, Free Law Project · link (read 2026-09-17)
- The Nuremberg Code (1947) — reprinted in the BMJ, No 7070, Volume 313, page 1448, 7 December 1996 · link (read 2026-09-17)
- WMA Declaration of Helsinki — Ethical Principles for Medical Research Involving Human Subjects — World Medical Association · link (read 2026-09-17)
- The impact of language barriers on documentation of informed consent at a hospital with on-site interpreter services — Schenker Y, Wang F, Selig SJ, Ng R, Fernandez A. Journal of General Internal Medicine 2007;22(Suppl 2):294–9 · link (read 2026-09-16)
- Risk communication and informed consent in the medical tourism industry: a thematic content analysis of Canadian broker websites — BMC Medical Ethics 2011;12:17 (Penney K, Snyder J, Crooks VA, Johnston R) · link (read 2026-09-16)
Where it came from: Cited a source named here · Harvested pulled from an open dataset · Trade practice how the trade works, hedged · Inference this project's own reasoning · Field somebody stood there. This record as JSON.