In this video, Dr. P K Julka, Senior Director, Oncology Daycare Centre, Lajpat Nagar, New Delhi, will talk on staging in breast cancer. The staging of cancer is done as stage 1, 2, 3 and 4 and according to the TNM classification. He further explains that T is for tumor, N for node and M for metastases. He will also explain in details the TNM classification according to the size of the tumor.