1. Squat: Squat is a good exercise, but if the posture is incorrect or the load is too heavy, it will cause damage to the knees.

2. Running: Running for a long time will damage your knees, especially if your running posture is incorrect or your shoes are not suitable.

3. Climbing stairs: Climbing stairs is also a good exercise, but if your knee is injured or you are overweight, it will put more pressure on your knee.

4. Basketball: In basketball, you need to jump and turn frequently, which will put some pressure on your knees.