An endometrial biopsy is a way for your physician to take a small sample of the lining of the uterus (endometrium). The sample is sent to a pathologist and looked at under a microscope for abnormal cells. An endometrial biopsy helps your doctor find any problems in the endometrium.
A soft, straw like device (pipelle) is used to suction a small sample of lining from the uterus. This method is fast and is not very painful.
Check for cancer of the uterus. For example, an endometrial biopsy may be done to help determine the cause of some abnormal pap smear results.