Table 1.

Recommendations to screen seven types of cancers

Cancer type	Screening target	Examination cycle	Primary screening methods	Secondary screening methods
Stomach	Individuals aged 40–74 years	Every 2 years	Esophagogastroduodenoscopy	Gastroenterography
Liver	Carriers of hepatitis B or C virus aged 40 years or older	Every 6 months	Alpha-fetoprotein+liver ultrasound
	Individuals diagnosed with liver cirrhosis at any age
Colorectum	Individuals aged 45–80 years	Every 1–2 years	Fecal occult blood test	Colonoscopy
Breast	Women aged 40–69 years	Every 2 years	Mammography
Uterine cervix	Women aged 20 years or older	Every 3 years	Pap smear (or liquid-based cytology)	Pap smear+human papillomavirus test
Lung	High-risk group who smoked 30 pack-years or more aged 55–74 years	Every year	Low-dose computed tomography
Thyroid	Not recommended as a routine screening test