misdiagnose

verb

mis·​di·​ag·​nose ˌmis-ˈdī-ig-ˌnōs How to pronounce misdiagnose (audio)
-ˌnōz,
ˌdī-ig-ˈnōs,
-ˈnōz,
-əg-
misdiagnosed; misdiagnosing

transitive verb

: to diagnose (someone or something) incorrectly
… babesiosis is often missed or misdiagnosed as malaria or flu.Linda Marsa
The researchers added that children with this disease are often misdiagnosed and thus inappropriately treated …Jane E. Brody

Examples of misdiagnose in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
To ignore these structural forces, Wilson suggests, is to misdiagnose the problem—and to risk prescribing the wrong solutions. Idrees Kahloon, New Yorker, 28 July 2025 Each year in the United States, 7.4 million people are misdiagnosed in emergency rooms, causing death or permanent disability in 1 in 350 patients, according to a 2023 study from the Agency for Healthcare Research and Quality. Alexis Kayser, MSNBC Newsweek, 30 June 2025 The guidance comes in the wake of a lawsuit against a Massachusetts center that misdiagnosed an ectopic pregnancy. Abigail Brooks, NBC news, 23 June 2025 Given the disease's rarity, it is often misdiagnosed initially as epilepsy or eye disease. Cheryl V. Jackson, IndyStar, 25 May 2025 See All Example Sentences for misdiagnose

Word History

First Known Use

1883, in the meaning defined above

Time Traveler
The first known use of misdiagnose was in 1883

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Cite this Entry

“Misdiagnose.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/misdiagnose. Accessed 6 Aug. 2025.

Medical Definition

misdiagnose

transitive verb
mis·​di·​ag·​nose (ˈ)mis-ˈdī-ig-ˌnōs, -ˌnōz How to pronounce misdiagnose (audio)
misdiagnosed; misdiagnosing
: to diagnose incorrectly

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