Colposcopy is a test to look at the vagina and cervix through a lighted magnifying tool (colposcope).
The colposcope magnifies the view 2 to 60 times so the doctor can see any problems that would be missed by the naked eye. A camera can be hooked to the colposcope to take pictures or videos of the vagina and cervix for a permanent record.
The doctor may put vinegar (acetic acid) and sometimes iodine (Lugol's solution) on the vagina and cervix with a swab or cotton balls to see areas of abnormal cells more clearly. Samples of the abnormal cells (biopsies) can be collected and looked at under a microscope.
WebMD Medical Reference from Healthwise