The physical examination after meniscal injury is divided into routine and special physical examination. The routine physical examination is based on visualization, palpation, kinesthesia, and measurement, and the special physical examination is based on McKinsey’s sign and pressure pain in the joint space. Palpation can feel whether there is fluid in the knee, whether there is localized heat, and whether there is pressure pain in the injured area; kinesthesia can check the mobility of the joint and whether there is any popping or pressure during movement; and measurement is to compare the degree of muscle atrophy and limited joint mobility on both sides (healthy and affected side). The special examination is called McKinsey’s sign, in which the examiner does gyration and squeezing of the knee joint in flexion and extension to determine the site of injury, as well as the pressure pain in the joint space.