Drafly

I'm not sure in what way you're asking. I haven't come across any research nor anything in the Merck documentation to indicate this affects BC pills. There is a corrrelation between BC pills and HPV/cervical cancer for the following reasons:
1. Women who use birth control pills are less likely to use barrier contraceptives, such as condoms or diaphragms. Using condoms may reduce the risk of HPV infection.
2. Women who use birth control pills usually have more sex partners than women who do not use birth control pills, which may increase their risk of HPV infection.
3. Birth control pill use may decrease the immune system's ability to resist HPV infection.
4. Birth control pills may enlarge the transformation zone on the cervix, which makes those cells more at risk for HPV infection.