The correct way to pat the knee joint: 1. first straighten the leg, and then put your hand in a half-clenched fist; 2. around the knee joint in a circle, and gradually pat 50-60 circles in the inner side of the knee joint to the outer side; 3. the strength of the pat should be light and then heavy, until the skin color changes around the purple; 4. then in the knee joint at the knee Yangguan points, blood sea points, Yinlingquan, Yanglingquan points, knee eye points, the Then repeatedly patting at the knee Yangguan point, Blood Sea point, Yinlingquan point, Yanglingquan point, Knee Eye point, Guizhong point, Guiyang point, etc. to activate blood circulation and remove blood stasis and smooth the joint.