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.
While just 250 cases were reported to the CDC from 2012-2021, the symptoms — high fevers, chills, nausea — can be often misdiagnosed as influenza, COVID-19, even malaria, says Job Lopez, a tick researcher at Baylor College of Medicine. Pien Huang, NPR, 23 June 2025 Girls and women have, until recently, been underdiagnosed or misdiagnosed with other mood disorders that are symptoms of underlying ADHD. New Atlas, 23 June 2025 The consequences are both deeply personal and widely systemic: Women are more likely to be misdiagnosed, experience adverse drug reactions, and face delays in care. Geri Stengel, Forbes.com, 6 June 2025 One major study found that nearly 1 in 10 strokes are misdiagnosed — often as migraines, vertigo, intoxication, or anxiety. Sean C. Domnick, The Orlando Sentinel, 5 June 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 30 Jun. 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

More from Merriam-Webster on misdiagnose

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