Your condition is hip dysplasia with osteoarthritis, or ankylosing spondylitis, rheumatoid arthritis with hip lesions, acetabular fracture, dislocation with traumatic arthritis, or femoral neck fracture. You should generally consider hip replacement if the situation is consistent with the following. (1) Hip pain has affected your daily activities, such as walking, bending over, etc., limited by pain; (2) no matter day or night when resting with hip pain discomfort, affecting the normal rest; (3) hip stiffness so that you can’t walk or lift your leg; (4) anti-inflammatory medication to treat the degree of reduction of hip pain is very slight; (5) by the regular conservative treatment is still not able to reduce the pain in the hip. The purpose of hip replacement is to relieve pain and improve function. After total hip replacement, more than 90% of the patients’ symptoms are significantly improved, hip pain is significantly reduced, and the ability to engage in daily activities is significantly improved. Most hip replacement patients can start standing and walking with the help of a walker under the guidance of a doctor on the second day after surgery. The possibility of complications after total hip replacement is very low. According to the early postoperative functional exercises are important, especially in the first few weeks. It is generally said that you will be able to return to the point where you can engage in daily activities in 4 to 8 weeks after surgery. Postoperative should pay attention to: (1) Prevent thrombosis; (2) Prevent infection; (3) Prevent falls; (4) Do not do cross-legged movements; (5) Do not exceed 90 degrees when flexing the hip joint for a short period of time. (6) Do not over-rotate internally, or externally; (7) Put a pillow between your legs when you sleep.