Valve replacement surgery is a medical procedure used to treat heart valve disease. During this surgery, a damaged or diseased heart valve is removed and replaced with a new valve, which can be either mechanical or biological. This helps restore normal blood flow through the heart and improves overall heart function. The surgery is typically performed under general anesthesia and may involve open-heart surgery or minimally invasive techniques. Patients usually stay in the hospital for several days for recovery, and follow-up care is essential to monitor heart health and ensure the new valve is functioning properly.