Explore a comprehensive medical case study focusing on joint pain in a young adult as part of the CRASH! Medical Review Series. Delve into a clinical vignette, physical examination techniques, differential diagnosis, initial workup, and management strategies. Learn about ankylosing spondylitis and seronegative spondyloarthropathies, as well as common differentials. Gain valuable insights into the diagnostic approach and treatment considerations for joint pain in young adults, with a special emphasis on ankylosing spondylitis. This educational video is designed to enhance medical knowledge for physician licensing exam preparation, offering a concise yet thorough review of this important clinical scenario.