Dr. Bias: Social Disparities in AI-Powered Medical Guidance

• URL: http://arxiv.org/abs/2510.09162v2
• Date: Thu, 16 Oct 2025 21:54:20 GMT
• Title: Dr. Bias: Social Disparities in AI-Powered Medical Guidance
• Authors: Emma Kondrup, Anne Imouza,
• Abstract summary: Large Language Models (LLMs) are increasingly proving to be competitive.<n>We show that, when LLMs are used for medical advice generation, they generate responses that systematically differ between social groups.<n>In particular, Indigenous and intersex patients receive advice that is less readable and more complex.
• Score: 0.04297070083645049
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: With the rapid progress of Large Language Models (LLMs), the general public now has easy and affordable access to applications capable of answering most health-related questions in a personalized manner. These LLMs are increasingly proving to be competitive, and now even surpass professionals in some medical capabilities. They hold particular promise in low-resource settings, considering they provide the possibility of widely accessible, quasi-free healthcare support. However, evaluations that fuel these motivations highly lack insights into the social nature of healthcare, oblivious to health disparities between social groups and to how bias may translate into LLM-generated medical advice and impact users. We provide an exploratory analysis of LLM answers to a series of medical questions spanning key clinical domains, where we simulate these questions being asked by several patient profiles that vary in sex, age range, and ethnicity. By comparing natural language features of the generated responses, we show that, when LLMs are used for medical advice generation, they generate responses that systematically differ between social groups. In particular, Indigenous and intersex patients receive advice that is less readable and more complex. We observe these trends amplify when intersectional groups are considered. Considering the increasing trust individuals place in these models, we argue for higher AI literacy and for the urgent need for investigation and mitigation by AI developers to ensure these systemic differences are diminished and do not translate to unjust patient support. Our code is publicly available on GitHub.

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