Skin Cryosurgery
Medically reviewed by Drugs.com. Last updated on May 6, 2024.
What do I need to know about skin cryosurgery?
Skin cryosurgery, or cryotherapy, is a procedure to treat a skin lesion by freezing it. A skin lesion is a growth on your skin. Cryosurgery uses a cold substance, usually liquid nitrogen, to kill the lesion without damaging nearby healthy skin.
How do I prepare for skin cryosurgery?
- Your healthcare provider will tell you how to prepare. You may be told not to use lotion, makeup, or other items near the lesion on surgery day.
- Tell your provider about all your current medicines. Your provider will tell you if you need to stop any medicine for the procedure, and when to stop. You will be told which medicines to take or not take on the day of the procedure.
- Tell your provider if you have a medical condition that makes your body react to cold temperature. This includes cold urticaria, Raynaud disease, or cryoglobulinemia. Tell your provider if you had cryosurgery and if you had problems after the procedure.
- You may need to have blood tests, imaging tests, or a biopsy. Ask your healthcare provider for more information about these and other tests you may need.
What happens during skin cryosurgery?
- Your healthcare provider may scrape the top of your lesion. Your provider will apply the cold substance with a cotton swab or spray. A gel and a cryoprobe may also be used. A cryoprobe is a long, pointed tool that is placed on your skin lesion.
- The cold substance is left on for 5 to 30 seconds, until a halo of ice forms around your lesion. Your provider may check the temperature inside your lesion by inserting a needle with a thermometer. The frozen lesion will slowly thaw out. Freezing and thawing may be repeated. The skin cells start to die when they are frozen.
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What will happen after skin cryosurgery?
A bandage will cover your lesion area to keep it clean and dry. You can go home when your healthcare provider says it is okay. Your lesion area may heal in 4 to 6 weeks. Larger areas may take as long as 14 weeks to heal.
What are the risks of skin cryosurgery?
- You may have discomfort, burning, or pain during and after your skin cryosurgery. Your skin may be red or swollen, or a blister may form. Your skin may bleed, or you may get an infection. If cryosurgery was done to treat a lesion on your face, you may have a headache after the procedure.
- The treated skin may take longer than expected to heal, and you may get a scar. A new lesion may grow in the same area. You may need cryosurgery again. Your nerves may be damaged and your skin may be numb. Skin cryosurgery may also cause your treated skin to get lighter or darker or to lose hair.
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