In July of 2018, the Federal Joint Committee (G-BA) has initiated the discussion regarding the establishment of the minimum quantity requirements for the surgical treatment of breast cancer and bronchial carcinoma. As the quality of surgery is directly dependent on the quantity, the number of operations performed at hospital and on the designated surgeon, the objective is to understand the importance of the experience and routine practice of the operations to reach the successful treatment outcomes and to determine a minimum number of operations, which should be performed in hospitals to gain enough experience.