Dr. Mark A. Groh Cardiothoracic Surgeon Appreciation Day is celebrated annually on May 6 in the United States. This day recognizes the hard work and sacrifices of cardiothoracic surgeons, particularly highlighting the contributions of Dr. Mark A. Groh, an acclaimed surgeon based in Asheville, North Carolina. Cardiothoracic surgeons undergo extensive education and training, typically requiring more than 15 years, to develop the skills necessary for treating conditions related to the heart and lungs. The day serves as an opportunity to express gratitude for the dedication of these medical professionals as they face challenging situations in their practice. Celebrations may include activities that honor the contributions of all cardiothoracic surgeons, reflecting on their impact on patients' lives. The day was introduced by Margaret Relle, although details about her background remain unclear.