mis·​di·​ag·​no·​sis ˌmis-ˌdī-ig-ˈnō-səs How to pronounce misdiagnosis (audio)
plural misdiagnoses ˌmis-ˌdī-ig-ˈnō-ˌsēz How to pronounce misdiagnosis (audio)
: an incorrect diagnosis
Misdiagnosis can easily occur unless the veterinarian is alert to the possibility of Lyme disease.Suzanne Clothier et al.
The court also stated that experts can be sued for negligence resulting from their misdiagnoses.Mark Hansen

Example Sentences

Recent Examples on the Web The recall issue relates to a misdiagnosis in the high-voltage battery management electronics system, which has the potential to cause the control unit to reset. Jack Fitzgerald, Car and Driver, 11 Jan. 2023 The first study of 54 monkeypox patients in the UK found that their symptoms differed from those seen in previous outbreaks and can potentially be mistaken for other infections, such as herpes and syphilis, increasing the risk of misdiagnosis. James Paton, BostonGlobe.com, 2 July 2022 The initial misdiagnosis and the presence of a new pathogen contributed to delays in establishing appropriate public health control measures and information campaigns. Nileena Velappan, STAT, 28 June 2022 In reporting her book, Dusenbery asked experts how to make progress against misdiagnosis in women and found the consensus was that the lack of feedback is making doctors overly confident in their diagnostic skills. Megan Margulies, ELLE, 10 Mar. 2022 Many of the images show skin conditions prevalent with Black people, combating a misrepresentation that often leads to misdiagnosis. NBC News, 11 Dec. 2021 Thyroid disease can also cause hair loss, so the misdiagnosis can send doctors on a wild-goose chase. Amanda Mull, The Atlantic, 12 Nov. 2021 But, at the time, the misdiagnosis was understandable. Katie Hafner, Scientific American, 4 Nov. 2021 Zak also felt like the medicine did more harm to Williams than good because of the misdiagnosis. Naledi Ushe, PEOPLE.com, 21 July 2021 See More

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'misdiagnosis.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

Word History

First Known Use

1884, in the meaning defined above

Time Traveler
The first known use of misdiagnosis was in 1884

Dictionary Entries Near misdiagnosis

Cite this Entry

“Misdiagnosis.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/misdiagnosis. Accessed 24 Mar. 2023.

Medical Definition


mis·​di·​ag·​no·​sis (ˌ)mis-ˌdī-ig-ˈnō-səs How to pronounce misdiagnosis (audio)
plural misdiagnoses -ˌsēz How to pronounce misdiagnosis (audio)
: an incorrect diagnosis
Last Updated: - Updated example sentences
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