Brazilian Study Shows Delays in Early Detection of Colorectal Cancer

A research partnership between the A.C. Camargo Cancer Center and Nexus surveyed roughly 2,000 Brazilians and found that early diagnosis of colorectal cancer yields cure rates above 90%. While 67% of respondents recognize blood in stool as a potential sign and 80% view it as serious, only 59% seek medical help immediately after noticing the symptom. Nearly half of those who see blood in their stool delay or avoid professional care, with 42% rating the sign as merely “serious” rather than “very serious.”

The study also noted a rise in cases among adults under 50 in São Paulo, increasing by almost 3% per year from 2000 to 2023. Researchers point to lifestyle factors such as low‑fiber diets, ultra‑processed foods, sedentary habits and obesity as possible contributors. To improve outcomes, the report advocates expanding the national colorectal‑cancer screening protocol, offering the fecal immunochemical test (FIT) through the public health system (SUS) for people aged 50‑75, alongside colonoscopy and other diagnostic procedures.

Health authorities estimate 53,810 new colorectal‑cancer cases per year in Brazil for 2026‑2028, making the disease the second most common tumor nationwide. Increased public awareness and faster medical response are deemed essential to reduce mortality.