• Home
  • Latest
  • Fortune 500
  • Finance
  • Tech
  • Leadership
  • Lifestyle
  • Rankings
  • Multimedia
IBM

Some Cancer Treatment Recommendations From IBM’s Watson Were Unsafe, Report Finds

By
Chris Morris
Chris Morris
Former Contributing Writer
Down Arrow Button Icon
By
Chris Morris
Chris Morris
Former Contributing Writer
Down Arrow Button Icon
July 27, 2018, 10:43 AM ET

IBM’s Watson could need a little more time in medical school, if a new report is accurate.

Documents reviewed by Stat, a medical news site, show the artificial intelligence supercomputer has shown “multiple examples of unsafe and incorrect treatment recommendations” for cancer patients.

The allegations, it’s worth noting, were made two years ago and no patients were harmed.

Incomplete training is being cited for the gaps, says the report. IBM researchers and doctors at the Memorial Sloan Kettering Cancer Center educated the system using hypothetical cases, rather than actual patient data.

IBM, though, takes issue with the claims, saying “it’s not an accurate or timely representation.”

“Today, Watson for Oncology is trained to help oncologists treat 13 cancers,” the company said. “Our oncology and genomics offerings are used by 230 hospitals around the world and have supported care for more than 84,000 patients, which is almost double the number of patients as of the end of 2017. … We have learned and improved Watson Health based on continuous feedback from clients, new scientific evidence and new cancers and treatment alternatives. This includes 11 software releases for even better functionality during the past year, including national guidelines for cancers ranging from colon to liver cancer.

“We remain absolutely committed to Watson Health to give providers and professionals the technology and expertise to help transform health for people everywhere.”

The report comes a little over a year after the American Society of Clinical Oncology gave Watson high marks for its cancer treatment plan suggestions.

AI training is one of the most challenging aspects for Watson. To adequately adapt for various scenarios, the system must learn nuance, which requires a lot of information and often in unusual ways. For example, one test the system undergoes, though not necessarily for medical testing, is called the “muffin challenge,” where Watson must differentiate between the tops of a blueberry muffin or the picture of a curled up Chihuahua.

The system has beaten most humans in that test.

About the Author
By Chris MorrisFormer Contributing Writer

Chris Morris is a former contributing writer at Fortune, covering everything from general business news to the video game and theme park industries.

See full bioRight Arrow Button Icon

Latest in

Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025

Most Popular

Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Rankings
  • 100 Best Companies
  • Fortune 500
  • Global 500
  • Fortune 500 Europe
  • Most Powerful Women
  • Future 50
  • World’s Most Admired Companies
  • See All Rankings
Sections
  • Finance
  • Leadership
  • Success
  • Tech
  • Asia
  • Europe
  • Environment
  • Fortune Crypto
  • Health
  • Retail
  • Lifestyle
  • Politics
  • Newsletters
  • Magazine
  • Features
  • Commentary
  • Mpw
  • CEO Initiative
  • Conferences
  • Personal Finance
  • Education
Customer Support
  • Frequently Asked Questions
  • Customer Service Portal
  • Privacy Policy
  • Terms Of Use
  • Single Issues For Purchase
  • International Print
Commercial Services
  • Advertising
  • Fortune Brand Studio
  • Fortune Analytics
  • Fortune Conferences
  • Business Development
About Us
  • About Us
  • Editorial Calendar
  • Press Center
  • Work At Fortune
  • Diversity And Inclusion
  • Terms And Conditions
  • Site Map
  • Facebook icon
  • Twitter icon
  • LinkedIn icon
  • Instagram icon
  • Pinterest icon

Latest in

Trump, standing behind a microphone, puts his pointer finger in the air.
EconomyDavos
Trump says Europe does one thing right: drug prices. ‘A pill that costs $10 in London costs $130 in New York or Los Angeles’
By Sasha RogelbergJanuary 21, 2026
9 hours ago
nathan's
BankingFood and drink
Nathan’s Famous goes from 5-cent hot dog stand in Coney Island to $450 million acquisition by Smithfield Foods over 100 years later
By Matt Ott and The Associated PressJanuary 21, 2026
11 hours ago
NewslettersCIO Intelligence
WPP’s CTO says AI is reshaping advertising. But creative judgment needs to remain in human hands
By John KellJanuary 21, 2026
11 hours ago
Real EstateDavos
Trump doesn’t want America to be ‘a nation of renters,’ but experts say at least one of his proposals may put homeownership more out of reach
By Marco Quiroz-GutierrezJanuary 21, 2026
12 hours ago
President Donald Trump greets people as he steps off plane in Switzerland
PoliticsPolitics
Trump calms markets with belligerent call for peace that touts contested antiwar record, reiterates U.S. ‘great power’ status and demands Greenland
By Tristan BoveJanuary 21, 2026
12 hours ago
Future of Workskills
‘AI adoption is accelerating, but confidence is collapsing’: The more workers use AI, the less they trust it. Baby boomers show a 35% drop
By Jake AngeloJanuary 21, 2026
12 hours ago

© 2026 Fortune Media IP Limited. All Rights Reserved. Use of this site constitutes acceptance of our Terms of Use and Privacy Policy | CA Notice at Collection and Privacy Notice | Do Not Sell/Share My Personal Information
FORTUNE is a trademark of Fortune Media IP Limited, registered in the U.S. and other countries. FORTUNE may receive compensation for some links to products and services on this website. Offers may be subject to change without notice.


Most Popular

placeholder alt text
AI
Elon Musk says that in 10 to 20 years, work will be optional and money will be irrelevant thanks to AI and robotics
By Sasha RogelbergJanuary 19, 2026
3 days ago
placeholder alt text
Personal Finance
Current price of silver as of Tuesday, January 20, 2026
By Joseph HostetlerJanuary 20, 2026
2 days ago
placeholder alt text
Economy
Jamie Dimon says he’d have no issue paying higher taxes if it actually went to people who need it. Right now it just goes to the Washington ‘swamp’
By Eleanor PringleJanuary 21, 2026
12 hours ago
placeholder alt text
Politics
Jamie Dimon tells Davos: ‘You didn’t do a particularly good job making the world a better place’
By Eleanor PringleJanuary 21, 2026
13 hours ago
placeholder alt text
Economy
Scott Bessent insists he’s ‘not concerned at all’ about investors selling America—despite the fact it’s unraveled tariffs before
By Eleanor PringleJanuary 21, 2026
17 hours ago
placeholder alt text
Success
Billionaire Marc Andreessen spends 3 hours a day listening to podcasts and audiobooks—that’s nearly an entire 24-hour day each week
By Preston ForeJanuary 20, 2026
2 days ago