Colorectal Cancer Screening Guidelines for Males

Starting Age for Colorectal Cancer Screening

The American Cancer Society (ACS) recommends screening beginning at age 45 (qualified recommendation) 1, 2
The US Preventive Services Task Force (USPSTF) provides a Grade B recommendation for screening at age 45-49 and a stronger Grade A recommendation for ages 50-75 3, 2
The National Comprehensive Cancer Network (NCCN) recommends starting at age 45, though acknowledges stronger evidence for beginning at age 50 1, 4
The American College of Gastroenterology suggests screening in average-risk persons aged 45-49 years (conditional recommendation) and recommends screening for ages 50-75 (strong recommendation) 1, 4
African American males should begin screening at age 45 due to higher incidence rates (weak recommendation) 5, 6

Screening should be considered for discontinuation at age 75 for individuals who are up to date with screening and have had negative prior screening tests, particularly colonoscopy 5, 7, 8
For males aged 76-85 without prior screening, individualized decisions should be made based on overall health status, life expectancy, and preferences 1, 2, 8
Screening should be discouraged in males over age 85 as the harms outweigh the benefits 7, 8
Males with severe comorbidities should stop screening at age 66 regardless of prior screening history 7, 8

Colonoscopy every 10 years and annual fecal immunochemical test (FIT) are first-tier screening options 5
Colonoscopy has advantages in the opportunistic screening setting, while annual FIT may be preferred in organized screening programs 5, 6

The recommendation to begin screening at age 45 is based on increasing colorectal cancer incidence in younger adults 7
The recommendation to begin screening at age 45 is also based on similar incidence rates in 45-49 year-olds now compared to 50-year-olds when screening was first recommended 7
The recommendation to begin screening at age 45 is also based on similar rates of advanced neoplasia in 45-49 year-olds compared to screening cohorts of 50-59 year-olds 7

Continuing screening beyond age 85 when evidence shows harms outweigh benefits 8
Stopping screening too early in healthy individuals with no prior screening history 8
Not considering race-specific recommendations, particularly for African American males 5, 6

For individuals up to date with screening who have had negative prior screening tests, consider stopping at age 75 years or when life expectancy is less than 10 years, as recommended by the U.S. Multi-Society Task Force on Colorectal Cancer 9, 10, 11, 12
Continue routine screening if the patient has not completed age-appropriate screening, regardless of prior screening history 9
Stop screening at age 75 if patients have had negative prior screening tests, particularly a negative colonoscopy, with an alternative threshold to stop when life expectancy falls below 10 years, regardless of exact age 9, 10, 11, 12
Consider screening up to age 85 for never-screened or under-screened patients, but only after careful assessment of comorbidities, overall health status, and life expectancy 9, 10, 11, 12
These individuals may derive substantial benefit since they lack the protective effect of prior negative screening 13

The presence of conditions that substantially limit life expectancy should prompt earlier cessation of screening 13
Patients with previously detected advanced neoplasia may benefit from continued surveillance colonoscopy even at advanced age, depending on comorbidities and confidence that neoplasia was completely cleared 9, 10, 11, 12

The recommendations to stop screening at age 75 for previously screened individuals carry weak recommendation strength with low-quality evidence 9, 10, 11, 12
The recommendation to consider screening never-screened individuals up to age 85 similarly carries weak recommendation strength with low-quality evidence 9, 10, 11, 12

Continuing screening beyond age 85 is not recommended, as evidence consistently shows harms outweigh benefits at this age 14

The U.S. Preventive Services Task Force (USPSTF, 2021) recommends that average‑risk adults begin colorectal cancer screening at age 45; this is a Grade B recommendation for ages 45‑49 (moderate certainty of net benefit) and Grade A for ages 50‑75 (high certainty). 15
The American Cancer Society (2018) issues a qualified recommendation to start screening at age 45 for average‑risk adults, indicating clear benefit but less certainty than its strong recommendation for age 50+. 16
Age‑period‑cohort analyses demonstrate a rising incidence of colorectal cancer in adults younger than 50, providing epidemiologic justification for the earlier start age. 15

Colonoscopy every 10 years is endorsed as a first‑tier option because it detects lesions and allows immediate polypectomy, offering both diagnostic and preventive benefits. (American Family Physician 2017; USPSTF 2021) [17][18]15
Annual fecal immunochemical test (FIT) is considered equally effective when patient adherence is high, serving as an alternative first‑tier option. (American Family Physician 2017; USPSTF 2021) [17][18]15

CT colonography every 5 years is an acceptable alternative, though it lacks the therapeutic capability of colonoscopy. (American Family Physician 2017; USPSTF 2021) [17][18]15
Multi‑target stool DNA test (FIT‑DNA) every 3 years provides a non‑invasive option with higher sensitivity but higher cost and lower availability. (American Family Physician 2017; USPSTF 2021) [17][18]15
Flexible sigmoidoscopy every 5‑10 years is another alternative, offering partial colonic visualization without full‑length examination. (American Family Physician 2017; USPSTF 2021) [17][18]15

The USPSTF assigns moderate certainty (Grade B) to the benefit of screening ages 45‑49, compared with high certainty (Grade A) for ages 50‑75. 15
The American Cancer Society’s “qualified recommendation” reflects clear benefit but acknowledges remaining uncertainty for the 45‑year start. [16][19]
The American College of Physicians and the U.S. Multi‑Society Task Force continue to recommend initiating screening at age 50 as their primary stance, while noting emerging data that support the age‑45 recommendation. [20][19]

Offer colonoscopy as the initial choice because it combines detection and immediate treatment.
If colonoscopy is declined, present annual FIT as the preferred alternative.

Guaiac fecal occult blood testing (FOBT) performed on a digital rectal exam specimen should be avoided due to very low sensitivity. (American Cancer Society 2018) 16
Septin9 serum testing is not recommended for routine screening because evidence of effectiveness is insufficient. (American Family Physician 2017) 17
Any positive result from a non‑colonoscopy test must be followed by a diagnostic colonoscopy to complete the screening pathway. (American Cancer Society 2018; USPSTF 2021) [16][15]

Continue routine screening until age 75; beyond this age, decisions should be individualized based on prior screening history, overall health, and life expectancy. (USPSTF 2021; Annals of Internal Medicine 2019) [15][19]