Hi everyone, I am 33 yrs old, and 9 out of the 12 siblings in my dad's family had polycystic kidney disease, including my dad. I recently had a kidney ultrasound that only showed one cyst on one kidney, so so far there is no evidence that I have it. Yesterday my gynecologist prescribed birth control pills to try and deal with a 2.5 cm cyst on my left ovary that we suspect is causing me pain and intestinal problems. So my question is - can the BCP do any damage to the kidneys, especially if it turns out that I do end up with PKD? Would it depend on the brand of BCPs? The brand is Marvelon. I have always been very reluctant taking any kind of medication because the possibility of PKD is in the back of my mind. Thanks.