Mailson Alves Lopes, a researcher from the University of Brasília, discusses groundbreaking findings on the use of cell-free DNA (cfDNA) to monitor colorectal cancer surgery success. He explains how real-time blood tests could reveal tumor removal effectiveness and predict patient outcomes. Lopes emphasizes that by tracking cfDNA levels before, during, and after surgery, clinicians may enhance postoperative care and detect cancer recurrence earlier. This innovative approach could revolutionize how colorectal cancer patients are monitored and treated.