1. Don’t walk too long on the road, and rest immediately when your knee feels uncomfortable. 2.Reduce heavy exercise, such as running, high jumping, long jumping, hiking, walking slope. 3, avoid half squat, full squat or kneeling position. Such as squatting horse stance. 4.Do not do half flexion rotation of the knee joint to prevent half plate injury. 6, pay attention to the knee joint warmth, you can wear long pants, knee pads to protect the knee joint. 7.Less heavy lifting and less wearing of high heels. 8.Prevent trauma and avoid overwork. 9, the choice of shoes is very important. A pair of shoes that fit can not only make you walk comfortably, but also reduce the impact and pressure on the knee joint during exercise. (1) The instep part of the foot can be closely combined with the shoe, the width and length are appropriate, and can correctly maintain the arches of the foot. (2) The weight of the shoe should be light, the sole should not be too soft, and it should be a little thick. (3) The heel of the shoe can be about 2-3 cm high, the sole is too flat is easy to get tired when walking. (4) shoes with non-slip pattern on the sole.