Oncology is the branch of medicine that focuses on the study, diagnosis, and treatment of cancer. It encompasses a wide range of medical disciplines, including surgery, chemotherapy, radiation therapy, immunotherapy, and targeted therapy, among others. Oncologists work to understand the underlying causes of cancer, develop effective treatments, and provide care for cancer patients throughout their diagnosis, treatment, and recovery process. Research in oncology is critical for advancing our understanding of cancer biology, improving treatment options, and ultimately finding a cure for this complex and devastating disease.