I have recently been diagnosed with Endometriosis within the last 2 years. I have also had Mitral Valve Prolapse (MVP) for the past 10 years.
... Anyways... I was reading in a brochure for Endometrosis that there is a commonality between having those two diseases. If you know of the reasoning behind this I would be very interested in knowing. As I have yet to find an answer yet. I am just curious why having one will give you a larger likley hood to get the other.

Thanks for your time and answers!
Thanks,
But that doesn't really explain how the endometriosis and mitral valve prolapse are connected.

ENDOMETRIOSIS AND MVP HAS NO RELATION LIKE WHAT YOU SAID !!there MAY BE A COMMON FACTORS LIKE AGE SEX BUT THERE IS NO COMMON CHARACTERISTIC FOUND AS ONE IS A DISEASE OF THE ENDOMETRIUM OF THE UTERUS AND SECOND IS A VALVULAR OUT FITTINGS IN THE HEART !eNDOMETRIOSIS MEANS THE ENDOMETRIUM OF THE UTERUS HAS MIGRATED TI SOME OTHER SITE AND THERE THE START FUNCTIONING SO AT THE TIME OF MENSTRUATION IT STARTS BLEEDING LIKE WHAT YOU GET IN/DURING MONTHLY CYCLE.May BE SOME VIRAL DISEASE DO PLAY A PART LIKE MUMPS DISEASE DO GIVE SOME EFFECT TO REPRODUCTIVE SYSTEMS BUT THIS MVP AND ENDOMETRIOSIS HAS NO LINK HAVING TOGETHERNESS AS WE DO FIND WITH HIV/aids WITH TUBERCULOSIS ! Always YouRsmE

I doubt there is a connection, since many men have mvp, but obviously don't have endometriosis. It's probably just a coincidence.