With the advent of an aging society and the increasing pursuit of quality of life, the number of patients treated with artificial knee replacement surgery for osteoarthritis of the knee is increasing year by year. Good surgical results and a short hospital stay allow patients to return to normal life soon after surgery. Patients who have not yet decided to have surgery often have concerns about being bedridden for a long time after surgery, not being able to take care of themselves and needing someone to accompany them. So how soon can I get out of bed after having artificial knee replacement surgery? The answer is 3-5 days without problems. The following factors can help you get out of bed early after the surgery 1. high quality surgery, no problem with the stability of the artificial joint prosthesis; 2. stable general condition after the surgery, able to eat normally, good physical strength; 3. drainage tube successfully removed within 48 hours after the surgery; 4. able to tolerate the discomfort of the incision (there will be slight pain, local swelling), or the use of self-control analgesic pump, or oral non-steroidal analgesic drugs, basically no pain 5. can use a walker or crutches (for a short period of time); 6. good attitude and confidence to cooperate closely with rehabilitation treatment. The benefits of getting out of bed early 1.getting out of bed one day earlier, gaining self-confidence in rehabilitation one day earlier; 2.getting out of bed one day earlier, getting familiar with and using new joints one day earlier; 3.getting out of bed one day earlier, avoiding bed-ridden complications one day earlier, increasing physical strength, improving appetite and sleep. C. Precautions after getting out of bed 1. The first time you get out of bed after surgery, you must be accompanied by medical personnel, who will teach you some methods and precautions. More importantly, you can judge whether the time to get out of bed is appropriate and how much activity is better; 2. There will definitely be mild discomfort during the exercise process, such as no strength, swelling and pain in the joint parts, especially at night when the lower limbs feel woody and chaotic, so don’t worry. The discomfort will gradually reduce with time until it disappears; 3, pay attention to whether there is blood leakage from the incision site, and whether there is abnormal edema in the calf and foot; 4, in addition to general walking, we should pay more attention to joint mobility exercise and muscle rehabilitation around the joint; 5, closely cooperate with the doctor’s rehabilitation program, before discharge (10 days after surgery) active flexion of the knee joint should exceed 90 degrees, to be able to take the initiative to completely straighten the lower leg. After discharge from the hospital, make sure to follow the exercise habits during hospitalization; 6. 3 months after surgery is the plateau period for rehabilitation. Under normal circumstances, the patient will recover completely and obtain a new joint that is pain-free, stable and with satisfactory mobility.