March Colorectal Cancer Push Emphasizes Early Screening as Study Shows Exercise Boosts Survival

Overview

• INCA projects roughly 53.8 thousand new colorectal cancer cases per year in Brazil through 2028, placing the disease third in national incidence excluding non-melanoma skin cancer.
• Medical societies recommend starting screening at age 45 for average-risk adults, with earlier evaluation for those with family history, and colonoscopy remains the gold standard because it can detect cancer and remove precancerous polyps.
• Early colorectal cancer is frequently asymptomatic, and unexplained iron‑deficiency anemia or persistent changes in bowel habits should prompt colonoscopy rather than watchful waiting.
• Clinicians report more diagnoses in people under 50, and surgeons caution against attributing recurrent rectal bleeding to hemorrhoids without proper assessment.
• A long-term New England Journal of Medicine study following 889 colon cancer patients over 17 years found supervised exercise cut all‑cause mortality by 37%, with eight‑year overall survival of 90% versus 83% in controls, supporting structured activity in survivorship care.