All women presenting to the rapid access clinic with post menopausal bleeding (PMB) and intermenstrual bleeding will be approached for consent for inclusion into this study. They will receive the patient information leaflet when they arrive in clinic and are waiting to see the clinician. When women normally attend this clinic the doctor will discuss what will happen - this includes an internal (pelvic scan) and an examination. If the womb lining is thickened on the scan the patient will need a tissue biopsy (this is not that common, most women only need a scan), this will be taken at the same time as the examination in clinic. The device used to take the tissue biopsy is called a pipelle. It is a fine 3mm width tube with suction which removes cells from the lining of the womb. If the patient is agreeable a second endometrial sample will be taken specifically for research.