Some of the post knee replacement hazards may include the possibility of some chance of infection and the fact that improper use can reduce the life of the prosthesis. Failure to use antibiotics or other reasons after knee replacement surgery may cause infection around the prosthesis, and once the infection is not controlled in time, it may cause the surgery to fail. After knee replacement surgery, if you engage in heavy labor for a long time, it will increase the burden of the prosthesis, or squatting for a long time will also cause excessive wear and tear of the prosthesis, which may reduce the service life of the prosthesis. If you don’t do regular and effective exercise after knee prosthesis replacement surgery, it may cause the joint can’t be fully straightened, which will affect your daily life to a certain extent. It is recommended that patients consult a doctor at the hospital for post-operative precautions after knee replacement surgery.