Colposcopy is a way for your doctor to use a special magnifying device to look at your vulva, vagina, and cervix. If a problem is seen during colposcopy, a small sample of tissue (biopsy) may be taken from the cervix or from inside the opening of the cervix (endocervical canal). The sample is looked at under a microscope.
WebMD. (2009, December 12). Retrieved from http://www.webmd.com/cancer/cervical-cancer/colposcopy-and-cervical-biopsy