A technique of viewing the cervix to determine the source of abnormal cells. It consists of:

• Soaking the cervix with vinegar (acetic acid).

• Looking with binocular magnification (6-10x).

• Using a red-free light (blue or green).
  ...and frequently...

• Taking small biopsies of the cervix.

Colposcopy is the first step in the evaluation of significant abnormalities on a Pap smear. It may be recommended by the cytologist after reviewing a Pap for which there are some significant clinical concerns.

These images show a cervix with mild dysplasia. The first image is as the cervix initially appeared and looks normal. The second image is after treatment with acetic acid. The "aceto-white" areas (areas of abnormality) are clearly visible.

Colposcope

Initial normal appearance of mild dysplasia

Mild Dysplasia after application of acetic acid