Hi MamaCatPatch, there are doctors that call uterine fibroids, 'fibroid tumors', these are not cancerous, but benign growths of fibroid tissue in the uterus. They can cause a lot of pain and heavy bleeding (this is what I had). They can sometime grow very large, and can cause infertility in many women.
I wonder if some doctors deliberatly use the word 'tumor', to try and frighten women into having surgery. This is a cynical view, but when dealing with doctors, I've become a very cynical person.