Ask a PT Response: "How long pain lasts will vary from individual to individual. I would suggest you have further discussion with your PT or surgeon to determine what may be contributing to your pain (ie. soft tissue, mechanics, weakness, etc..). After 10 weeks out, most patients who have undergone a hip replacement are no longer experiencing severe pain in the region of the femur. Pain at the knee could be a result of a change in walking mechanics as a result of the surgery which is putting stress to regions of the knee where your previous walking pattern was not. An X-ray of the knee might be a good ideal to rule out arthritis of the knee. Participation in aquatic therapy may be beneficial as well and allow for increase tolerance to acticvity. Best of luck to you and thank you for using CyberPT."