Colon cancer is one of the most common type of cancer. It is very treatable,if caught early.
Stages of a tumor and risk factors:
Stage 0 : Cancer has not grown beyond the inner layer of the colon wall
Stage 1 : Grown to outer layer of wall
Stage 2 : Tumor is through walls not spread to lymph nodes
Stage 3 : Spread to lymph nodes
Stage 4 : Cancer spreads to distant sites in body,such as liver or lung
