A heart surgeon is a medical doctor who specializes in performing surgeries on the heart and blood vessels. They treat conditions such as heart disease, congenital heart defects, and valve problems. These surgeons often work in hospitals and collaborate with other healthcare professionals to provide comprehensive care for patients. To become a heart surgeon, one must complete extensive education and training, including medical school and a residency in general surgery, followed by a fellowship in cardiac surgery. This specialized training equips them with the skills needed to perform complex procedures, such as coronary artery bypass grafting and heart valve repair.