The woman lies in the gynecological examination position. A colposcope is placed at a small distance (10-15 cm) from her body. The doctor, using the strong light and magnification provided by the colposcope, examines in detail the skin and mucous membranes.
A solution of diluted acetic acid (similar to white vinegar) is used for the colposcopy. By applying this solution on the skin and mucous membranes, lesions that were not visible up to then are revealed.
It is possible, if the doctor finds it necessary, to use an iodine solution (called lugol).