1. Don't let your knees exceed your toes when squatting. Because when the knee exceeds the toe, it will cause the knee to bear more pressure, which will inevitably lead to joint damage.
2. Keep your knees and toes in the same direction during the squat. Because when the knees and toes are in the same direction, we can better concentrate on exercising the muscles of the thighs or buttocks, so that we don't have to exert strength from the muscles of other parts of the body.
3. Open the hip joint when doing squats. Opening the hip joint is also to better concentrate on exercising thigh or hip muscles.
4. If the flexibility of the hip joint is not good, you can try to do a squat with wide feet first, and put your hands between your feet as support to open the hip joint. This squat helps to open the hip joint. Look at the picture below: