It turns out that post-total hip arthroplasty is not simply about physical recovery, but also about preventing complications. Major surgery is physically demanding and patients need to be in bed to recover, but being in bed for too long can lead to bed sores, pneumonia, and heart disease. Once these complications occur, the overall recovery is seriously affected. In addition, the blood flow in the limbs slows down when there is a lack of exercise, and when the blood flow is slow, the blood in the blood vessels tends to clot and cause embolism, and if the embolus that blocks the blood vessels falls off and flows down the blood stream to the heart and further to the lungs, it will block the large blood vessels in the lungs and endanger the patient’s life. Therefore, it is important to get up early to exercise after surgery to prevent complications. When is the right time to start rehabilitation exercises after surgery? It should be said that the sooner you resume exercise after surgery, the better. However, since the wound is usually placed with a tube that drains the stagnant blood out of the wound, it is not convenient to walk on the ground until the drainage tube is removed, so you can generally only do passive exercises in bed on the day of surgery, such as massaging the lower limbs, which can promote faster blood flow to the lower limbs and prevent embolism of the blood vessels. The drainage tube can be removed on the first day after surgery, and you should get down and practice walking on the floor after the drainage tube is removed. Can patients who are too old, such as those over 90 years old who have had surgery, be considered a few days later to get off the floor at their discretion? On the contrary, the older the patient is, the more likely he or she is to have post-operative bedridden complications, and the sooner he or she should get off the floor. What kind of exercise is better for recovery after total hip arthroplasty? There is no unified opinion on this, but there is a unified principle that the amount of exercise should be increased gradually from small to large. For example, on the day of surgery, we can help patients massage the muscles and joints of the lower limbs, and on the morning of the first day after surgery, we can increase bed exercises, allowing patients to practice flexing and extending the joints of the lower limbs in bed and actively elevating the lower limbs, and in the afternoon, we can practice getting out of bed and standing. On the second day after surgery, the number of walking exercises and walking distance should be gradually increased. Five to seven days after surgery, the patient should start to practice up and down stairs, climbing bicycles and other exercises to increase the coordination of movement. Two weeks after surgery, if the patient has good physical strength, he or she can gradually give up the walker and practice walking if he or she can stand steadily without falling. Does the primary disease of the artificial joint replacement surgery, the type of artificial joint prosthesis used in the surgery, and the use of bone cement fixation have any effect on the recovery of movement after surgery? Generally, there is no effect. As long as the patient does not feel pain at the surgical site, he or she can be fully weight-bearing, which means that the weight of the body is placed entirely on the operated limb. Unless the patient’s bone structure was reconstructed during surgery due to a large defect, he or she can usually return to walking within one to two days after surgery. If the bone was reconstructed during surgery, the patient should be on the ground early, but the surgeon may tell the patient that the operated limb is not weight bearing or cannot be fully weight bearing and that crutches are needed to replace the weight bearing on the affected limb. The choice of exercise after surgery depends on the patient’s own condition and the conditions of the hospital. Pay attention to gradual progress, from small to large amounts of exercise, and be careful not to fall and prevent joint dislocation when getting in and out of bed. In order to prevent complications and increase the speed of recovery, patients after hip arthroplasty should not stand when they can walk, not sit when they can stand, and not lie down when they can sit. If you feel increased wound pain or heavy fatigue at night after exercise, it means that the amount of exercise is too much and needs to be reduced appropriately.