Colon cancer symptoms
In most cases, colon cancer develops slowly—usually over many years—and shows few symptoms in its early stages. That is why regular colon cancer screening is crucial to detecting colon cancer in its most treatable stages.
Once symptoms of colon cancer appear, they may include
- Abdominal pain
- Anemia
- Blood in the stool
- A change in bowel habits for more than a few weeks (eg, persistent diarrhea or constipation)
- Rectal bleeding
- Weakness or fatigue
- Unexplained or unintentional weight loss
Colon cancer is the second leading cause of cancer-related deaths in the United States.1 Yet, colon cancer can be prevented through screening and removal of polyps. If cancer is found, early detection often leads to a longer life, as 90% of people diagnosed when the cancer is found at an early stage survive more than 5 years.1
Having regular colonoscopies (once every 10 years for patients with no risk factors) increases the likelihood of detecting colon cancer early, when it can often be cured. Screening can also play a crucial role in prevention, because abnormal polyps and lesions may be found and removed before they become cancerous.
As many as 60% of deaths from colon cancer could be prevented if everyone aged 50 and older were screened regularly.2