Principles and Practice of Family Medicine: The Evidence-Based Guide to Diagnosis, Clinical Reasoning, and Patient-Centered Primary Care for Medical Students, Residents, and ABFM Boards

Principles and Practice of Family Medicine is a comprehensive, evidence-based textbook written for medical students, residents, and practicing physicians preparing for ABFM board certification or seeking a reliable clinical reference for day-to-day primary care practice. Most family medicine textbooks are organized like medical encyclopedias, cataloguing diseases by organ system with little regard for how a family physician actually thinks, reasons, and decides. This textbook is different. It is built around the clinical reasoning arc of a family physician, from foundational principles and diagnostic thinking to lifespan care, chronic disease management, and the emerging challenges of modern practice. This book covers every major domain of family medicine with the depth required for competent clinical practice and the clarity required for effective learning. Each chapter includes evidence-based management frameworks, clinical decision algorithms, practical clinical pearls drawn from real-world primary care, and EBM summary boxes referencing current guidelines from USPSTF, ADA, ACC/AHA, GINA, and other authoritative bodies. The book opens with Section I, which addresses the foundations that make a family physician distinct: the biopsychosocial model, clinical reasoning and cognitive bias, the doctor-patient relationship, medical ethics, and the social determinants of health. These are not introductory formalities. They are the intellectual core of the specialty, and they are treated as such. Section II covers preventive medicine in full, including the periodic health examination, immunization across the lifespan, lifestyle medicine, occupational and environmental health, travel medicine, and palliative and end-of-life care. Section III follows patients across the entire human lifespan, from preconception and antenatal care through pediatrics, adolescent medicine, adult primary care, and comprehensive geriatric assessment. Section IV is the largest clinical section, covering cardiovascular, respiratory, gastrointestinal, endocrine, renal, musculoskeletal, neurological, dermatological, infectious, and ear-nose-throat conditions as they present in primary care, with practical guidance on when to manage, when to investigate further, and when to refer. Section V addresses whole-person and complex care, including mental health integration, substance use and addiction medicine, trauma-informed care, family violence, chronic pain, Long COVID, medically unexplained symptoms, and the management of multimorbidity. Section VI closes the book with chapters on the patient-centered medical home, digital health, artificial intelligence in primary care, telemedicine, physician burnout, health advocacy, and the future of the specialty. This textbook contains several carefully selected clinical illustrations, diagnostic algorithms, screening tools, scoring systems, and data visualizations that support rather than replace the written content. Topics covered in this textbook include clinical reasoning and diagnostic frameworks, shared decision-making, health equity and social needs screening, evidence-based cancer and metabolic screening, contraception and reproductive health, comprehensive geriatric assessment and deprescribing, hypertension and cardiovascular risk management, diabetes and GLP-1 receptor agonist therapy, asthma and COPD stepwise management, STI screening and HIV primary care, opioid risk stratification and MOUD, palliative symptom management and goals-of-care conversations, trauma-informed care and ACE screening, ABFM-relevant clinical content across all major primary care domains, and much more. Whether you are a third-year medical student, a family medicine resident, a physician preparing for board certification or recertification, or a practicing clinician, this book is designed to serve as both a learning tool and a long-term resource.