endometrial biopsy what tissue
An endometrial biopsy is a procedure to take a small tissue sample from the lining of the uterus, called the endometrium. Your healthcare provider can do an endometrial biopsy to take a small tissue sample from the lining of the uterus (endometrium) for study. The endometrial tissue is viewed under a microscope to look for abnormal cells. Your healthcare provider can also check the effects of hormones on the endometrium.
Endometriosis. Endometriosis is the abnormal growth of endometrial tissue similar to those that form the inside of the uterus, but in a location outside of the uterus. This abnormal growth undergoes cyclic monthly changes.