Biopsy of the lining of the uterus Endometrial biopsy Endometrial biopsy Endometrial biopsy Endometrial biopsy Endometrial biopsy Endometrial biopsy Endometrial biopsy Endometrial biopsy Endometrial biopsy Endometrial biopsy Endometrial biopsy Endometrial biopsy Endometrial biopsy Endometrial biopsy Endometrial biopsy Endometrial biopsy Endometrial biopsy Endometrial biopsy