Final answer:
Colorectal cancer does progress through distinct stages. Colonoscopies are important for both diagnosing and preventing the progression of the disease by identifying and removing pre-cancerous polyps. Regular screenings are recommended for individuals over 50 and those with certain risk factors.
Step-by-step explanation:
Does Colorectal Cancer Progress in Stages?
Yes, colorectal cancer progresses through distinct stages. A cancer diagnosis generally includes cancer staging, which is the use of a classification system to reflect the seriousness of a cancer, including how large a tumor is and the extent to which cancer has spread. These stages range from in situ, where abnormal cells have not spread to nearby tissue, to more advanced stages where cancer may have spread to other parts of the body.
Colonoscopy is the gold standard for diagnosing colorectal cancer, and it is also preventive as it allows for the removal of potentially pre-cancerous polyps. Colon cancers are typically slow growing, making routine screenings like colonoscopy beneficial in detecting and preventing the progression of the disease.
Screening methods such as testing for DNA from cancer cells in stool samples or fecal occult blood tests, in conjunction with a colonoscopy, are recommended for those over 50 and for those with risk factors such as a family history of colorectal cancer, smoking, and a diet high in animal fat and protein.