How to Use diagnose in a Sentence

diagnose

verb
  • Thousands of new cases have been diagnosed in the past year.
  • The test is used to help in diagnosing heart disease.
  • The doctor was unable to diagnose the skin condition.
  • The mechanic was unable to diagnose the problem.
  • Would my child one day be diagnosed?
    — Michelle Maves, MSNBC Newsweek, 18 Oct. 2025
  • In first grade, she was diagnosed with autism.
    — Samantha Rappaport, CBS News, 18 May 2026
  • He was diagnosed with autism around age 8.
    — Derek James, CBS News, 26 May 2026
  • The host says he was not diagnosed with either trait.
    — Ralphie Aversa, USA Today, 8 Oct. 2025
  • But the good news is that once it’s diagnosed, it can be treated.
    — Audrey Noble, Vogue, 16 June 2024
  • Rhodes was Morales's age when she was diagnosed.
    — Madeline Mitchell, USA Today, 9 June 2026
  • Some can show symptoms at birth, and some can be diagnosed in utero.
    — Hannah Sacks, PEOPLE, 24 June 2026
  • It's been a long and rocky journey since he was diagnosed five years ago.
    — Karen Weintraub, USA Today, 3 May 2026
  • He had been diagnosed with colon cancer last year.
    — Gene Johnson, Los Angeles Times, 28 Apr. 2026
  • He was diagnosed with a blood clot on one of his lungs and was ruled for the season.
    — Anthony Chiang, Miami Herald, 25 Feb. 2026
  • The virus can be diagnosed through lab testing.
    — Angelica Stabile, FOXNews.com, 23 Oct. 2025
  • He was later diagnosed with hairy cell leukemia.
    — Daniel I. Dorfman, Chicago Tribune, 16 Mar. 2026
  • This can be used to diagnose heart attacks—at least in some cases.
    — Sophie Bushwick, Scientific American, 29 July 2022
  • That's one reason the illness can be so hard to diagnose and keep track of.
    — Colleen Murphy, Health.com, 29 June 2021
  • That’s when she was diagnosed with cancer.
    — Cara Lynn Shultz, PEOPLE, 29 Jan. 2026
  • But first, your doctor will need to diagnose you via a skin biopsy.
    — Women's Health, 27 Jan. 2023
  • This guy’s too good not to force him to have to diagnose what’s happening too.
    — Los Angeles Times, 9 Nov. 2021
  • About one in eight women will be diagnosed with breast cancer over their life.
    — Ken Alltucker, USA Today, 2 June 2026
  • Our three-year-old son, RJ, had just been diagnosed with autism.
    — Holly Robinson Peete, Newsweek, 22 Dec. 2024
  • Learn what to look for to diagnose the problem and how to fix it and keep your orchid alive.
    — Karen Brewer Grossman, Southern Living, 20 Jan. 2026
  • No at-home test can diagnose what is causing those symptoms.
    — Ryan Brennan, Fort Worth Star-Telegram, 17 June 2026
  • All siblings were screened, and three out of four quadruplets were diagnosed.
    — Wendy Grossman Kantor, PEOPLE, 7 Nov. 2025
  • More than half of the 41 were diagnosed with cancer.
    — David Oliver, USA Today, 11 Feb. 2026
  • Then he was diagnosed with cancer.
    — Barton Goldsmith, AJC.com, 17 June 2026
  • Can an at-home gut health test diagnose a condition?
    — Ryan Brennan, Fort Worth Star-Telegram, 17 June 2026
  • She was diagnosed with Alzheimer's disease two years ago.
    — Joel Rose, NPR, 24 Mar. 2026

Some of these examples are programmatically compiled from various online sources to illustrate current usage of the word 'diagnose.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

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