Seidel’s Guide to Physical Examination 9th Edition presents a comprehensive and patient-centered approach to physical examination and health assessment, spanning across the lifespan. This edition places a greater emphasis on patient safety, evidence-based practice, and clinical reasoning. Effective communication skills and hands-on examination techniques are also highlighted. The core chapters are structured into four main sections, including Anatomy and Physiology, Review of Related History, Examination and Findings, and Abnormalities, with a focus on integrating lifespan content into each section. The authors, comprising of advanced practice nurses and physicians with expertise in caring for patients of all ages, provide a unique interprofessional and interdisciplinary perspective. This edition also includes updated content on infectious outbreaks such as Zika and Ebola, addressing the need for infection control measures.