This means you have a fibroid uterus and a thin endometrial stripe.
Irregular bleeding in a woman your age is usually due to one of the following causes: pregnancy, thyroid hormone abnormality, perimenopausal anovulation, endometrial polyp, endometrial hyperplasia (overgrown endometrial tissue) with or without atypia or endometrial cancer.
A proper work up will include checking a thyroid hormone level (TSH), undergoing an endometrial biopsy and now that you have had a pelvic ultrasound, a study to look inside the uterus for polyps (e.g., hysteroscopy, sonohysterogram).
Most commonly this type of bleeding is due to a polyp or perimenopausal anovulation.
Talk to your ob/gyn about your evaluation and test results.
Thanks so much for the info! I'm going to have blood work tomorrow & surgury (total abdominal hysterectomy & possible bilateral salpingo-oophorectomy) on the 27th. My gyn & doctor said no other test were needed. Does a thin dndometrial stripe mean no cancer generally? Thanks for all your help!