Popliteal cyst patients can exercise the muscle strength around the knee joint through squatting against the wall, straight leg raising exercise, supine knee bending and other exercises to slow down the swelling and pain and other discomforts. 1. Squatting against the wall: popliteal cyst patients squat with their backs against the wall, open their legs shoulder-width apart, slowly bend their knees until their thighs are parallel to the ground, keep squatting for 3 to 5 seconds and then slowly straighten them up, repeat the above action 10 times. 2. Straight leg raising exercise: popliteal cyst patients take the supine position, straighten both lower limbs, raise the lower limbs of one side to the highest point, maintain for about 5 seconds and slowly put down, the above action of both lower limbs alternately for 20 to 30 times. 3. supine knee flexion: popliteal cyst patients take the supine position, one side of the knee flexion to the chest, both hands to fix the leg, maintain 5 to 10 seconds gradually straighten the knee joint, alternately repeat the above action 15 times. Popliteal cyst patients should follow the doctor’s instructions for exercise, daily need to pay attention to exercise time, exercise intensity moderate, such as discomfort should be timely medical care.