Oncology is the study and treatment of cancer, a disease that affects millions of people worldwide. This field of medicine focuses on understanding the causes, development, and progression of cancer, as well as developing effective strategies for prevention, diagnosis, and treatment. Oncologists work closely with other healthcare professionals to provide comprehensive care to cancer patients, including surgery, radiation therapy, chemotherapy, immunotherapy, and targeted therapy. Whether you are a patient, caregiver, or healthcare provider, understanding the basics of oncology can help you make informed decisions about cancer care.