Changing Birth Control Pills

Dear Dr Redmond.

I first strted on Dianette for bad skin when I was about 15 but a couple of years ago I was changed onto Microgynon 30. Do you think this could have caused my hair loss? My GP has now put me back on Dianette to see if that helps, but I am also wondering whether to just come of BCP to see what happens.

Thankyou very much for your time.