What is the prognosis for colon cancer in young adults?

The prognosis of early-onset colon cancer can vary depending on a few factors, including: 

• Stage at diagnosis. Young adults diagnosed in earlier stages of colon cancer have a much better prognosis compared with those diagnosed at stages 3 or 4. Early-onset colon cancer is often diagnosed at more-advanced stages. This is often due to delayed recognition of symptoms, which can worsen prognosis.
• Type of cancer cells. Colon cancer in younger people often is more aggressive. Despite this fact, many young adults usually survive just as long, or even longer, than older adults when they are treated at the same stage.
• Treatment response. Younger people often receive more-aggressive treatments, including surgery and chemotherapy, and typically tolerate these therapies better than do older adults.
• Genetic differences. Unique genetic profiles in young adults may influence cancer cell behavior and treatment response. However, this is still being studied.