Artificial intelligence, touted for its potential to transform medicine, led to some doctors losing skills after just a few months in a new study.

AI helped health professionals to better detect pre-cancerous growths in the colon, but when the assistance was removed, their ability to find tumors dropped by about 20% compared with rates before the tool was ever introduced, according to findings published Wednesday.

Health care systems around the world are embracing AI with a view to boosting patient outcomes and productivity. Just this year, the UK government announced £11 million ($14.8 million) in funding for a new trial to test how AI can help catch breast cancer earlier.

The AI in the study probably prompted doctors to become over-reliant on its recommendations, “leading to clinician

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