A damaged or unhealthy heart is removed during a heart transplant and replaced with a healthy one. The heart is healthy since it came from a deceased donor. When all other therapies have failed, it is the last option for those with heart failure. Coronary heart disease, damaged heart valves or heart muscles, congenital heart abnormalities, or viral infections of the heart are possible causes of heart failure. Although a heart transplant is a life-saving procedure, there are several hazards involved. Some of these dangers can be avoided or managed with the aid of careful monitoring, effective therapy, and routine medical care. Most heart transplant patients may resume their usual levels of exercise following surgery.