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misdiagnose

American  
[mis-dahy-uhg-nohs, -nohz, mis-dahy-uhg-nohs, -nohz] / mɪsˈdaɪ əgˌnoʊs, -ˌnoʊz, ˌmɪs daɪ əgˈnoʊs, -ˈnoʊz /

verb (used without object)

misdiagnosed, misdiagnosing
  1. to make an incorrect diagnosis.


verb (used with object)

misdiagnosed, misdiagnosing
  1. to diagnose erroneously.

    to misdiagnose the nation's ills.

misdiagnose British  
/ ˌmɪsˈdaɪəɡˌnəʊz /

verb

  1. to diagnose (an illness or problem) wrongly or mistakenly

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of misdiagnose

First recorded in 1925–30; mis- 1 + diagnose


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

"It's a rare illness, it's hard to diagnose and easier to misdiagnose," he adds.

From BBC ● May 6, 2026

There are situations in which doctors can misdiagnose people with TB.

From Los Angeles Times ● Mar. 25, 2024

This difference may help explain why clinicians sometimes misdiagnose women who have bipolar disorder with depression.

From Seattle Times ● Sep. 16, 2022

Without proper context, the data could potentially be used to misdiagnose illnesses and turn people into hypochondriacs.

From New York Times ● Jan. 5, 2022

Dr. John Mandrola, a cardiac electrophysiologist in Louisville, Ky., said the ECG feature could misdiagnose patients because of inaccurate readings, or lead to overtreatment of patients.

From The Wall Street Journal ● Sep. 12, 2018

She said her husband sought treatment at several hospitals and his condition was “repeatedly” misdiagnosed.

From Los Angeles Times ● Aug. 27, 2026

“Sam, the strength you had for those nine months that the hospital misdiagnosed you is unheard of and so strong-hearted of you. You definitely were a fighter,” Stewart said Thursday.

From Los Angeles Times ● Aug. 27, 2026

She hasn't got a number for how many people she thinks have been misdiagnosed, but believes researchers could figure it out.

From BBC ● Aug. 21, 2026

Ellie explores why it takes so long to be diagnosed with 'endo', and meets a woman who had a perfectly healthy appendix removed because she was misdiagnosed.

From BBC ● May 27, 2026

If bravery is a medical condition, everybody’s misdiagnosed me.

From "The Hate U Give" by Angie Thomas

This often results in doctors misdiagnosing the disease or catching it much later in its progression, when tremors may already be apparent.

From Washington Post ● Sep. 2, 2022

Williams’ departure came after an ugly dispute with the team’s medical staff and former president Bruce Allen in which he blamed the team for misdiagnosing a cancerous growth on his head.

From Washington Times ● Sep. 1, 2022

This included misdiagnosing a student with a potentially life-threatening case of appendicitis and failing to notice a stress fracture in another student, prolonging the recovery.

From Seattle Times ● Jul. 13, 2020

Caroline Schnakers was a neuropsychologist in Belgium when studies began appearing that showed doctors were misdiagnosing consciousness: People who were conscious were being diagnosed as being in a vegetative state.

From Los Angeles Times ● Aug. 22, 2019

In his 2015 autobiography Purple Revolution, he laid bare both his anger with the NHS for initially misdiagnosing his condition but also his gratitude for the ultimately successful treatment, which he says saved his life.

From BBC ● May 27, 2019

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