Mitral valve replacement surgery is a treatment for conditions such as severe mitral valve closure insufficiency or stenosis, and is safer and less scary when performed by hospitals and doctors who are qualified to perform the surgery. Mitral valve replacement surgery is one of the surgical options for heart valve surgery and is mainly used for the treatment of conditions such as severe mitral valve insufficiency or mitral valve stenosis. The procedure is now well established, and undergoing the surgery can improve severe hemodynamic abnormalities, improve cardiac function, and delay further deterioration of the disease. In addition, perioperative monitoring and testing are usually well established before and after the procedure to clarify indications and rule out contraindications. However, surgery involves certain risks, and should be performed in a hospital that is qualified to perform the surgery and is fully aware of the risks. If you have any doubts about the surgery, you can raise them with the attending physician during the preoperative interview to get answers. It is recommended to cooperate fully in the treatment and not to resist the treatment due to fear.