Oncology is the study of cancer. An oncologist is a doctor who treats cancer and provides medical care for a person diagnosed with cancer. [↑]
Oncology is a branch of medicine that deals with the prevention, diagnosis, and treatment of cancer. A medical professional who practices oncology is an oncologist. The name’s etymological origin is the Greek word ὄγκος (ónkos), meaning “tumor”, “volume” or “mass” and the word λόγος (logos), meaning “study”.
Cancer survival has improved due to three main components including improved prevention efforts to reduce exposure to risk factors (e.g., tobacco smoking and alcohol consumption), improved screening of several cancers (allowing for earlier diagnosis), and improvements in treatment.