This document discusses diagnosis and treatment of hip and knee pain. It covers evaluating hip and knee pain through history, physical exam, and various imaging modalities like x-ray, CT, MRI, bone scan, and ultrasound. Specific causes of hip and knee pain are discussed like regional nerve entrapments, bursitis, and overuse syndromes. Evaluation and treatment of conditions like trochanteric bursitis, iliotibial band syndrome, and patellofemoral syndrome are summarized. Hip and knee anatomy, pediatric hip pain, and neural causes of groin pain are also outlined.