Sara2001 think the average time woman take them is far higher then 3 years
And it implies certain risk. In 2017, a large Danish prospective study reported breast cancer risks associated with newer formulations of oral contraceptives.
Women who have used oral contraceptives for 5 years or more have a higher risk of cervical cancer than women who have never used oral contraceptives. The longer a woman uses oral contraceptives, the greater her risk of cervical cancer increases. One study found a 10% increased risk for less than 5 years of use; a 60% increased risk for 5 to 9 years of use, and twice the risk for 10 or more years of use.
Smith JS, Green J, Berrington de Gonzalez A, et al. Cervical cancer and use of hormonal contraceptives: a systematic review. Lancet 2003; 361(9364):1159-1167.
Of course, these are studies, but the most important thing is what each girl tells her doctor, who is the one who can best assess different markers in analytics.
