[The value of follow-up in surgical oncology]

Follow-up after surgical interventions for cancer is essential for the early detection of recurrent (2nd) primary and metastatic disease; patient coaching, including psychosocial coaching; and treatment quality control. As the incidence of cancer increases, cost-benefit analyses become increasingly important. The most effective period of follow-up is 5 years. An intensive follow-up schedule has been shown to increase life expectancy in colorectal cancer patients through early detection and timely intervention for recurrent disease. In melanoma patients, self-detection plays an important role. Nurse practitioners are increasingly involved in follow-up to reduce costs and specialist time. A differential follow-up schedule that takes into account the initial tumour stage can further enhance the cost-benefit ratio of follow-up.