A procedure by which a sample is taken of the endometrial lining of the uterus. This may be performed with or without an anaesthetic. Risks include bleeding after the procedure. This test is usually performed in the evaluation of abnormal menses, heavy menstruation or post-menopausal bleeding. It may be part of an infertility evaluation. Endometrial biopsy can reveal uterine cancer, uterine fibroids, uterine polyps and adenomyosis. Often performed in those with endometriosis as part of the evaluation.