Ethical, legal, and regulatory challenges in AI-based healthcare tools.

Artificial intelligence (AI) is increasingly integrated into healthcare systems, offering transformative opportunities in diagnostics, treatment personalization, predictive analytics, and workflow optimization. However, alongside these advancements, AI introduces complex ethical, legal, and regulatory challenges that must be addressed to ensure safe, equitable, and trustworthy implementation. This perspective examines the evolving landscape of AI-based healthcare tools, focusing on critical issues including algorithmic bias, accountability, data ownership, privacy, regulatory adaptation, human oversight, and the emergence of generative AI. Bias within training datasets may reinforce healthcare inequities by producing models that fail to generalize across diverse populations, potentially contributing to misdiagnosis and unequal care delivery. At the same time, the opacity of "black box" algorithms raises significant medico-legal concerns regarding liability and clinician responsibility in AI-assisted decision-making. Expanding use of wearable devices, digital biomarkers, and continuously evolving datasets further complicates questions surrounding informed consent, patient autonomy, and data governance. Regulatory systems also face challenges adapting to AI technologies that are dynamic and continuously updated rather than static medical devices. The article additionally highlights the importance of maintaining meaningful human oversight to prevent overreliance on automated recommendations and preserve clinical judgment. Emerging generative AI tools, including large language models and synthetic image generators, introduce further ethical concerns related to misinformation, transparency, and autonomous guidance. Ultimately, responsible AI integration in medicine requires interdisciplinary collaboration, evolving governance frameworks, and continuous ethical vigilance. AI should remain a supervised assistive technology designed to support, rather than replace, human expertise, transparency, accountability, and patient-centered care.