I have recently been diagnosed with GERD, esophagitis. My doctor told me that there is nothing that causes GERD, that it just happens. However, as I have been researching on the internet about GERD, almost on every website, one of the cause is birth control pills. Birth control is one of the medications listed that can relax the lower esophagus muscle and cause GERD, so they say. I called my other OBGYN and he says that he has never heard of it. I don't know whether to quit them or not. I know the internet is not always valid, but these are well known medical websites. I'm not sure why the conflict and who I can believe.