Which statement best describes routine diagnostic screening in cancer prevention?

• A. It is an important preventive factor because screening helps detect cancers early
• B. It is only for breast cancer
• C. It detects cancer after it has advanced
• D. It is not recommended for skin cancer

Answer: (A)

Routine cancer screening aims to find cancer before symptoms appear, so treatment can begin earlier and outcomes improve. This early detection is why screening is considered an important preventive factor: cancers are often more treatable and survival chances are higher when found at an initial stage. Screening programs exist for multiple cancers—breast, colorectal, cervical, and others—reflecting its broad role in prevention, not just for one disease. If cancer is detected after it has advanced, treatment tends to be more complex and prognosis can be worse, which is exactly why early detection is emphasized. While guidelines about skin cancer screening vary, the overall point remains that screening is about catching cancers early rather than waiting for symptoms.