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File:Ganfyd logo.png
Commercial? No
Type of site Wiki
Registration Required
Available language(s) English
Launched November 2005

Ganfyd is a medical wiki community and online medical wiki encyclopedia, created in November 2005 by a group of doctors working in the United Kingdom. The site has been the subject of academic exposition into emerging methods of disseminating medical information and more specifically, the restricting of editors within an open collaborative wiki environment.[1][2][3]. This model has subsequently been copied by other medical wikis such as Medpedia.



It is intended to become a large on-line textbook of medicine. By October 2009 there were over 2000 page hits a day and it had reached 6,500 topic pages with over double that number of pages including stubs and redirects and 449 editors from six countries:

In December 2006, the Ganfyd site was noted as a specific example of a wiki being used as a low cost alternative to commercial point of care tools like UpToDate with the search portal Trip already indexing it in Dean Giustini's British Medical Journal article How Web 2.0 is Changing Medicine[4]. This may be the first example of a medical wiki being indexed by an independent medical search engine.

Only registered medical practitioners or persons working under their direction, and a small number of invited non-medical specialists, may edit ganfyd articles, and its license specifically prohibits editing by people who are not registered medical practitioners. The intention is to maintain the qualification of the material, which is appropriate for a professional medical resource. The effect is that articles are reliable and an audit trail exists for them.

Registration is by a variety of mechanisms, including a GMC Certificate or equivalent.


"Ganfyd" is an acronym meaning "Get a note from your doctor." This phrase is known to be used by employers, insurance underwriters, and sports instructors to their respective employees/clients. In some cases, this may be intended to absolve the employer/instructor from liability in the event that the client suffers physical harm.

Some medical practitioners regard this as a cynical use of their time and skill, thus they use the term "ganfyd" pejoratively.


  1. Moturu, Sai T.; Liu, Huan; Johnson, William G. (2008-08-20). Trust Evaluation in Health Information on the World Wide Web. 30th Annual International IEEE EMBS Conference. 
  2. McLean, Rick; Richards, Brian H; Wardman, Janet I; (2007-08-06). "The effect of Web 2.0 on the future of medical practice and education: Darwikinian evolution or folksonomic revolution?". Medical Journal of Australia 187 (3). 
  3. Barskey, Eugene; Giustini, Dean (2007). "Introducing Web 2.0: wikis for health librarians". J Can Health Libr Assoc 28: 147–150. 
  4. "How Web 2.0 is Changing Medicine"

Keim, B Nature Medicine 13, 231-233 (28 February 2007) doi:10.1038/nm0307-231 News describes the project and discusses the problem of reliability in medical references.

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