This Chapter is an excerpt from The Yellow Emperor's Classic of Internal Medicine, specifically Chapter 74, detailing a method of diagnosing illnesses through pulse and visual examination. Qi Bo, a physician, describes how to assess the radial artery's characteristics, skin conditions, and eye coloration to identify various diseases and their severities. The text covers a wide array of symptoms, including edema, fevers, and jaundice, correlating them to specific organ imbalances and prognoses. Finally, it explains the relationship between seasonal changes and the development of particular illnesses.