Endometriosis isn't cancer. It's a condition but it's not cancer.
So I'm confused. It's a condition in the uterus in which tissue from the lining of the uterus implants outside the uterus on the pelvic structures, usually In the ovaries. It can cause severe pain duriing periods & sex. Treatment is usually determined by age. But it is NOT CANCER.
So I hope I've helped. I dont know where she got the idea it was cancer. Unless there's something else I don't know. Take care. Hugs, Lee