Proper patting of the knee can improve blood circulation in the body and relieve local muscle tension, but attention must be paid to the technique and strength of patting. Slapping the knees with hands is a kind of health care exercise, and it is beneficial to the body to slap the knees appropriately every day. It can raise the temperature of the legs, improve blood circulation in the body and relieve local muscle tension. Pat the knee need to pay attention to the patting technique, strength, to avoid blind patting on the body to produce harm. Knee patting is usually around the knee joint patting stimulation, starting from the center of the knee to the surrounding circle patting. Need to pay attention to, patting strength should be moderate, can not be too frequent patting, also can not be in the knee wear and tear, localized pain, etc. patting. Appropriate patting of the knee can only play a certain role in health care, if the knee discomfort, you should promptly go to the hospital for standardized treatment.