Cryotherapy (cryosurgery) destroys genital warts by freezing them with liquid nitrogen.
A doctor applies liquid nitrogen to and around the warts.
First, the tissue is frozen with liquid nitrogen. Then, the tissue is allowed to thaw. The tissue is frozen again, if needed. The time of application varies by the doctor who applies the liquid nitrogen and the size of the warts.
The size and thickness of the warts determine the number and length of freeze/thaw cycles. Up to three treatments may be needed.
You may have a mild to moderate burning sensation during the treatment.
Genital warts in the urethra or anus usually require the most treatments because the warts may be inside the opening.
Cryotherapy is usually done in your doctor's office or clinic. A magnifying instrument may be used to see the abnormal tissue better.
