I had surgery a week ago and will have a post op appointment in about 4 weeks. The doctor mentioned going on Birth control pills. I would like advice on whether they will actually help my situation. And, if so, recommendations on type. I went in for surgery because they found an 18 cm cyst on my ovary and I had an elevated blood test for ovarian cancer markers. Now, I was pretty sure they were going to find endometriosis but I still wanted aggressive surgery because I have been miserable for years. I am 42, and have 2 adopted daughters. So I had no desire to keep having periods. I asked them to try to save the one ovary, if it was healthy and they did. So far, so good with not having any signs of surgical menapause. The endometriosis was extensive, attaching to my bladder and bowel. I asked the surgeon did he think he got it all and he said, "I'm sure there is some microscopic endometriosis still in there and it will come back." He wants to put me on birth control to help keep the estrogen in check, so the endo grows back slower. Does that sound right? I don't want to be on birth control pills if they are not effective. Any advice is welcomed.