When I Menstrate I Soak 4 Pads Within An Hour.

When I menstrate I soak 4 pads within an hour. I have had to use multiple items in coordination when I have to go to work when I menstrate that is when I am not bed ridden with the agonizing stabbing pain. I know I need a hysterectomy but my concern is that there is a very close history of cancerous cysts in my family. There has been a ultra sound results that show a 1 inch cyst on my ovary. How do I convince a doctor to give me a full hysterectomy?