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Main testing methods
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In the United States, there are various colorectal cancer screening options available.
Recommended age for screening
Colorectal cancer screening is recommended for all men and women aged 45-75 (and in some cases up to 85) (previously it was 50, but was lowered in 2021).
If you have a family history of colorectal cancer or are at risk for conditions such as inflammatory bowel disease (IBD), you may need earlier and more frequent screenings. Please consult your doctor.
Colorectal cancer screening
便潜血検査
high-sensitivity guaiac fecal occult blood test (gFOBT)
毎年
便DNA -FIT
DNA -fecal immunochemical test (FIT)
1-3年おき
CT colonography
CT colonography
5年おき
S状結腸鏡
Sigmoidoscope
5年おき
S状結腸鏡＋DNA-FIT
Sigmoidoscopy + DNA-FIT
10年おき+1年おき
大腸内視鏡
Colonoscopy
Every 10 years
In Japan
In Japan, it is generally recommended that adults aged 40 and over undergo an annual fecal occult blood test.
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