Cancer cells can spread from the colon or rectum to other parts of the body and develop into a new tumour. The new tumour is called a metastasis, or secondary tumour. If more than one tumour develops in another part of the body, they are called metastases.
Understanding how a type of cancer usually grows and spreads helps your healthcare team plan your treatment and future care. If colorectal cancer spreads, it can spread to the following: