National Surgical Oncologist Day is observed in the United States every August 22, honoring doctors who specialize in the surgical removal of tumors, particularly malignant ones. This observance was established in 2019 by Jenni Cherlin and the Lean on Me Breast Cancer Network to commemorate Dr. Dwight C. De Risi, a notable surgical oncologist. Surgical oncologists not only remove tumors but also perform cancer staging, biopsies, and preventive surgeries. The Society of Surgical Oncology, originally named after pioneer James Ewing, promotes the field and highlights the importance of surgical oncology in cancer treatment. To celebrate, individuals can congratulate surgical oncologists, express gratitude for their contributions, and support cancer charities.