Guidelines for cancer screening vary based on factors such as age, gender, family history, and risk factors. For instance: - The [American Cancer Society]() recommends that women aged 45 to 54 get mammograms every year. - Pap smears are advised every three years for women aged 21 to 29, and every five years for women aged 30 to 65 if combined with HPV testing. - Colonoscopy is generally recommended every 10 years starting at age 50, but those with a family history of colorectal cancer may need to begin earlier.
