To prevent dislocation after femoral head replacement, the lower limbs need to be placed in the correct position when lying in bed, which is generally the neutral position of abduction, and avoid excessive flexion and internal/external rotation of the hip joints in the daily life. After femoral head replacement, the lower limbs should be kept in the neutral position of abduction, and the hip joint should be abducted about 30 degrees, and the toes of the feet should be pointed upwards to avoid excessive internalization of the hip joint, and a triangular pillow can be put between the legs. In addition, it is more important to avoid excessive flexion and internal/external rotation of the hip joint, such as avoiding playing shuttlecock, stilted legs, resting with legs crossed, sitting on a short bench, and bending down to pick up things, etc. Especially in the six months after the operation, the above actions should be prohibited. Usually, we should also pay attention to avoid trauma, avoid large doses or strenuous exercise, such as avoiding climbing mountains and engaging in impact sports such as kicking a soccer ball.