Definition

Cervical cryotherapy is a procedure which involves freezing an area of abnormal tissue on the cervix. This tissue gradually disappears and the cervix heals. One cervical cryotherapy is usually sufficient to destroy the abnormal tissue.

Purpose

Cervical cryotherapy is a standard method used to treat cervical dysplasia, meaning the removal of abnormal cell tissue on the cervix.

Description

Cervical cryotherapy, or freezing, usually lasts about five minutes and causes a slight amount of discomfort. The procedure is usually performed in an outpatient setting.

Cervical cryotherapy is done by placing a small freeze-probe (cryoprobe) against the cervix that cools the cervix to sub-zero temperatures. The cells destroyed by freezing are shed afterwards in a heavy watery discharge. The main advantage of cryotherapy is that it is a simple procedure that requires inexpensive equipment.

The cryogenic device consists of a gas tank containing a refrigerant and non-explosive, non-toxic gas (usually nitrous oxide). The gas is delivered using flexible tubing through a gun-type attachment to the cryoprobe.

From http://www.answers.com/topic/cervical-cryotherapy