For most of my late 30's & early 40's, my periods were quite regular, but so heavy that I could go thru a super absorbent tampon in 45 minutes & had to wear a panty liner, just in case & my periods were always 7 days.
My PCP had been treating me & finally I switched drs. & got a female internist, who referred me to a gyno. He did an unltrasound & said he saw fibroids & told me, that he'd give me a choice of either having a hysterectomy or I could wait until menopause (I was 43 at this point) & that the fibroids would likely shrink on their own, but he scheduled me for a hysteroscopy & D&C just to be on the safe side.
Had the hysteroscopy & the gyno called me that night to tell me the pathology report had come back with cancerous cells present & at that point, the option of waiting the fibroids out was off the table & I needed to have a hysterectomy ASAP.
He couldn't tell how extensive the cancer was, but thought it was early because nothing had been visible during the hysteroscopy.
I had the hysterectomy & there was a gynocological oncologist present & he thought the cancer was confined to just the lining of my uterus & hadn't gone into the muscle wall yet, but said to wait until the pathology report to tell me if I'd need to have chemo or radiation as a followup.
Thankfully, it was caught extremely early with no lymph node involvement & I didn't have to have any further treatments & just had to have testing done every 3 mos, then, every 6 mos until 5 years out & then, went back to having routine yearly exams again.
The hysterectomy was done 25 years ago this month & thankfully, I've had no recurrence. I have all of my routine "girly" stuff done religiously since then, including colonoscopies, since my PCP said having had uterine cancer makes me more prone to the possiblity of colon cancer.