If you are still uncomfortable one month after hip replacement, it may be caused by infection, loosening of prosthesis, muscle spasm, improper exercise, etc. Treatment measures such as anti-infection, secondary surgery, physical therapy and rest can be taken. 1. Infection: it is the most common reason, due to wound infection, resulting in local discomfort, need to timely anti-infection treatment, take penicillin and other antibiotics. 2. Loosening of the prosthesis: the implanted prosthesis loosened due to various reasons, can also lead to similar symptoms, need to timely review, decide whether to need a second surgery to fix. 3. Muscle spasm: after implantation of the prosthesis due to prolonged muscle tension, resulting in spasm, need to take massage, physiotherapy and other physical therapy to relieve muscle tension. 4. Improper exercise: too early or too much intensity of activities on the ground, resulting in discomfort, need to pay attention to rest, while moderate exercise. It is recommended that patients seek timely medical treatment, under the guidance of the doctor for examination and treatment.