The stage of a cancer tells you how big it is and whether it has spread. Knowing the stage helps your doctor decide which treatment you need.
The type of anal cancer you have depends on the type of cell the cancer started in.
Find out about tumour, node and metastasis (TNM) staging.
Anal intraepithelial neoplasia means there are abnormal cells within the lining of the anus.
Stage 1 anal cancer is the earliest stage of an invasive cancer. Find out about stage 1 anal cancer and its treatment.
Find out what stage 2 anal cancer means and about treatment options.
Find out what stage 3 anal cancer means and about treatment options.
Find out what stage 4 anal cancer means and about treatment options.