Endometrial cancer is a tumour originating in the endometrium (womb lining); it is the most common gynaecological cancer in the UK. Although routine management for these women does vary, in general a screening test is performed, typically a pelvic (internal) ultrasound to assess the endometrium (womb lining). In cases where the endometrial thickness is above the threshold for investigation - an endometrial biopsy (sampling cells from the womb lining) is indicated. The biopsy can be taken blindly or under scan or hysteroscopic guidance. Hysteroscopy, the insertion of a small camera into the womb to visualise the womb lining allows direct visualization of the cavity. This usually occurs at a separate consultation in an outpatient setting or under general anaesthesia.