Cancer is not a single disease with a single type of treatment. There are more than 200 different types of cancer, each with its own name and treatment.

Cancer comes in different shapes and sizes. Depending on the type of cancer, they behave differently and respond differently treatments. How cancer affects the body varies significantly from person to person.

Cancer is a term used to describe a group of illnesses with common characteristics. These characteristics include an overgrowth of cells that form a tumour.  Cancers lack normal cell growth, which can result in serious health problems.