The precautions after hip replacement are more important, as follows: 1, pay attention to the surgical incision, if the surgical incision is not removed when the patient is discharged from the hospital, you must pay attention to keep the surgical incision clean, change the medication regularly, dress with clean dressings to avoid contamination of the incision, and go to the hospital to remove the stitches on time; 2, the issue of postoperative position is very important, the postoperative position of hip replacement should avoid excessive hip flexion, usually pay attention to Avoid sitting on a short bench or short sofa, and do not let the patient’s knee close to the chest, which may lead to joint dislocation; avoid excessive inversion of the affected lower limb, which may also easily lead to hip dislocation; put a triangular pillow between the legs when sleeping to maintain a certain abduction angle of the affected limb; put a pillow between the legs when lying on the side to avoid excessive inversion of the affected limb; 3, rehabilitation exercises after hip replacement surgery, hip replacement surgery After the anesthesia subsides, you can exercise the isometric contraction of the quadriceps and tibialis anterior muscles, mainly functional exercises for ankle hyperextension and hyperflexion; after the postoperative extraction, you can gradually get out of bed with the assistance of a walker for exercise; in general, after hip replacement surgery, patients can use walkers for about 4-6 weeks to gradually adapt to the hip prosthesis and abandon the walker to restore their walking gait. 4. Prevent special complications, such as deep vein thrombosis, and take oral rivaroxaban in 4-6 weeks after surgery to prevent deep vein thrombosis in the lower extremities; 5. Prevent infection, and when lung infection or oral or dental disease or infection occurs, actively treat the infection and avoid infection-induced periprosthetic infection around the hip joint.