Cancer Science is a medical field that covers every branch of Oncology such as Cancer research and therapy. Cancer was considered as deadly disease few years ago, but now the development and research has changed the prospection, many advances in the Oncology field. There are varied therapies and methods are available now to treat and diagnose the cancer. The Targeted Cancer Therapy is one of the finest therapies available worldwide, in which the cancer cells are treated by targeting and inhibiting specific molecules that are responsible for cell growth progression. This blockage of the cell growth can be done by medicines. The Cancer Case Reports show the Stem Cell Therapy is also an effective and best treatment for cancer. Cancer biomarkers support in finding tumor cells and treating them. Tumor Immunology plays an important role in finding of new approaches for advances in cancer therapeutics and treatment.