Heart transplant: A heart transplant is a surgery where doctors remove a person's sick heart and replace it with a healthy donor heart. Doctors decide to do a heart transplant when a heart condition can't be improved with medicines or surgery.

Note: All information is for educational purposes only. For specific medical advice, diagnoses, and treatment, consult your doctor.
© 1995-2023 KidsHealth® All rights reserved. Images provided by iStock, Getty Images, Corbis, Veer, Science Photo Library, Science Source Images, Shutterstock, and Clipart.com