The accuracy of cancer screening tools varies. For instance, mammograms have a sensitivity rate of about 87%, meaning they correctly identify 87% of women who have breast cancer. Pap smears have a high accuracy rate, especially when combined with HPV testing. Colonoscopies are highly effective, often considered the gold standard for colorectal cancer detection. However, no screening tool is 100% accurate, which makes follow-up tests and consistent monitoring essential.
