Recommendations
The American Cancer Society recommends, beginning at age 45, both men and women follow one of these testing schedules for screening to find colon polyps and/or cancer:
Flexible sigmoidoscopy every 5 years, or
Colonoscopy every 10 years, or
Double-contrast barium enema every 5 years, or
CT colonography (virtual colonoscopy) every 5 years
Yearly guaiac-based fecal occult blood test (gFOBT)
Yearly fecal immunochemical test (FIT)
Stool DNA test (sDNA) every 3 years

Medicare coverage
In the United States, Medicare insurance covers the following colorectal-cancer screening tests:
Colonoscopy: average risk — every 10 years beginning at age 50, high risk — every 2 years with no age restriction
Flexible sigmoidoscopy — every 4 years beginning at age 50
Double-contrast barium enema: average risk  — every 4 years beginning at age 50, high risk — every 2 years
(CT) colongraphy: not covered by Medicare
gFOBT: average risk — every year beginning at age 50
FIT: average risk — every year beginning at age 50
Cologuard: average risk — every 3 years beginning at age 50

Risks
About 1 in 200 people who undergo a colonoscopy experience a serious complication. Perforation of the colon occurs in about 1 in 2000 procedures, bleeding in 2.6 per 1000, and death in 3 per 100,000, with an overall risk of serious complications of 0.35%.In some low-risk populations screening by colonoscopy in the absence of symptoms does not outweigh the risks of the procedure.
A connective tissue nevus  may be present at birth or appear within the first few years, is elevated, soft to firm, varying from 0.5 to several centimeters in diameter, and may be grouped, linear, or irregularly distributed. : 993

See also
Skin lesion
List of cutaneous conditions

References


== External links ==