Ah. I see. The ovaries and cervix continue producing very low levels of hormones even after menopause. Besides, some people believe in leaving healthy organs. I fall into that camp.
I was diagnosed with cervical cancer (Ia1) last year and only had my cervix and uterus removed. I figured I'd like to hobble along on the intermittent doses of hormones my ovaries spit out each month!
I wish your friend well with her hysterectomy!