I have pap results indicating atypical endometrial cells, and my doctor has recommended a pelvic ultrasound. I am 57, post menopausal for over 4 years, no hormone replacement and always normal gynecologic history. Two normal pregnancies; no miscarriages or surgery. I did have an intrauterine device when I was young, and had to have it removed via D&C. Based on the post below, the reason for the ultrasound is to determine the thickness of the uterine wall. If the wall is 7mm, what is the next step? what is a colposcopy?