February 11, 2026

AI Chatbots Give Inaccurate Medical Advice, Oxford University Study Finds

BBC Science
AI medical advice Oxford chatbots
Researchers at Oxford University have published a study demonstrating that AI chatbots frequently deliver inaccurate medical advice when queried about health conditions and symptoms. The findings raise significant concerns about the growing trend of consumers turning to AI tools for medical guidance, particularly as these chatbots become more conversational and authoritative in tone.

The study evaluated the accuracy of responses across a range of medical scenarios and found that chatbots often provided incorrect diagnoses, inappropriate treatment recommendations, or failed to flag serious conditions requiring urgent medical attention. The errors were sometimes subtle enough that a layperson would have difficulty identifying them as incorrect.

The research highlights a critical gap between the perceived capability of AI chatbots and their actual reliability in medical contexts. Health professionals and AI developers are being urged to implement stronger safeguards, clearer disclaimers, and better mechanisms to direct users toward qualified medical professionals. The study adds to a growing body of evidence suggesting that while AI holds promise in healthcare, its current deployment for direct patient-facing medical advice carries meaningful risks.
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