**Abstract**

Cancer is a disease mainly caused by uncontrolled division of body cells in any part in the human body. Cancer is epidemiologically one of major non communicable disease and considered to be main health issue in the community across the world. In medicine, we are often interested in how disease or its treatment affects quality of life (QOL), which is generally considered health-related quality of life. All cancer patients should be subjected to attain all dimensions of quality of life i.e. Physical, Mental, Social & Functional Health. QOL is not easy to measure but despite this, there are many models and scales available to assess & ensure QOL among cancer patients. Good QOL also ensures more life expectancy among cancer patients and they can live more social & productive life. Maintenance of good QOL must be integral part of all cancer prevention & treatment.

**Keywords:** cancer, quality of life (QOL), models of QOL: Scales of QOL, dimensions of QOL
