1. Do not place your knee higher than the operated hip joint, so that the angle is less than 90 degrees. 2.When sitting, please keep the knee height below the hip joint and never lean your body forward. 3.When squatting, please bend the knee on the unoperated side and keep the operated leg straight behind. 4.When you want to sit with your legs straight and flat, please remember to hold both hands back and never let your body lean forward. 5.When lying in bed, either on your back or on your side, put a pillow between your legs to prevent the operated hip joint from tucking in.