Most women should be screened for cervical cancer every three years. According to new guidelines released by Cancer Care Ontario, that’s how often women 21-to-69, who are or have been sexually active, should get a pap test. Public Health Nurse with the Durham Health Department, Agnes Tynski says screening is the number one way to detect cancer early. Tynski says the health department has teamed up with local health care centres to make sure women without a health care provider are being screened. Tynski says there has been a 60 per cent decline in cervical cancer rates, which is a credit to increased awareness and higher screening rates.