If they are doing a Hysterscopy on you, you might be abel to request them to look, since its usually done like/as a lap surgery. The only true way to prove you have Endo is if they laproscopically look inside you- but the endo is found outside the uterus, not in (usually, Im no expert so someone correct if I am wrong). When I had my diagnostic Lap, they also did a Hysteroscopy to check if I had a septum in my uterus--so I was special and recieved three holes (two on either side of my uterus for my hysteroscopy--one in my bellybutton to check the rest of the abdomen for Endo). I recommend asking to have them check while getting the hysteroscopy (if thats what your doing) so you only go through the surgery once.
Hope that helps
