With the continuous development of science and technology and the continuous improvement of surgical techniques, after artificial hip replacement surgery, the time patients need to be hospitalized is greatly shortened, and a lot of postoperative rehabilitation training and care are gradually transferred to be completed at home. However, for patients, as they are not professionals, they are often hesitant to seek medical treatment in the face of all the problems that may arise after the operation, for fear of serious problems if they don’t go to the doctor, or for fear of a false alarm if they go to the doctor. As a matter of fact, if a patient has the following symptoms, he or she needs to seek immediate medical attention: 1. Hip dislocation. It is important to know that even if the artificial hip replacement has been many years, the hip joint may be dislocated due to inappropriate posture or trauma, once the hip dislocation should be considered reset or revision and other issues, need to seek immediate medical attention; 2, postoperative wound pus. If the wound is red after surgery and starts to bleed pus and water, then there should be a high suspicion of infection and immediate medical attention is needed; 3. Constant pain after surgery. If the patient can feel pain all the time after the operation, or even the pain is intensified, it is also necessary to consult a doctor in time.