Hi there, I have a pelvic ultrasound annually whilst still on Tamoxifen. There was some evidence of thickening of the uterine lining...but the ultrasound showed up a polyp and something strange going on in one fallopian tube. Luckily, I quickly got everything sorted...and it was because of the ultrasound that these things were detected as there were no symptoms (and pathology normal). So, I'm happy about that. I have very few side effects on Tamoxifen (other than the usual tiredness, flushes etc) so reckon it's worth it xxxx