Artificial intelligence (AI) has become an essential component of modern healthcare, supporting disease diagnosis, clinical decision-making, medical imaging, and patient risk prediction. Despite these advances, growing evidence demonstrates that AI systems may unintentionally reinforce existing healthcare disparities through algorithmic bias, opaque decision-making, and unequal model performance across demographic groups. Existing research has largely addressed these challenges independently, focusing on fairness, explainability, privacy, or trust as separate research areas. This paper proposes an integrated theoretical framework that conceptualizes fairness as an emergent property resulting from interactions among data quality, problem formulation, algorithm design, explainability, privacy preservation, governance, and continuous monitoring. Drawing upon recent literature in medical AI ethics, fairness-aware machine learning, explainable AI, privacy-preserving learning, and trustworthy AI, the paper develops a multidimensional conceptual model explaining how bias originates throughout the AI lifecycle rather than solely during model training. The framework also introduces a Fair and Trustworthy Healthcare AI Lifecycle that emphasizes continuous fairness auditing, transparent decision-making, privacy-aware learning, and stakeholder participation. The proposed model contributes to AI governance by integrating technical and socio-technical perspectives and offers a foundation for future empirical validation and policy development.

Artificial Intelligence Healthcare AI Algorithmic Bias Fairness Explainable AI Trustworthy AI Healthcare Ethics Conceptual Framework