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Seborrheic Keratosis: Cryotherapy

Topic Overview

Cryotherapy is the use of extreme cold, in the form of liquid nitrogen, to remove skin growths such as seborrheic keratoses.

This simple procedure usually takes less than a minute and can be done in your doctor's office. Your doctor applies the liquid nitrogen using a probe or a cotton swab, or he or she sprays the liquid nitrogen directly onto the skin growth.

Cryotherapy can cause moderate pain that can last up to 3 days. Healing is generally quick (7 to 14 days). Expect a blister to develop within hours after treatment. The blister will dry up over the next few days, and the keratosis should fall off.

Cryotherapy causes little or no scarring, though some people, particularly those with darker skin, experience permanent skin-color lightening. Talk to your doctor to see if cryotherapy is right for you.

Related Information

Credits

By Healthwise Staff
Primary Medical Reviewer Kathleen Romito, MD - Family Medicine
Specialist Medical Reviewer Randall D. Burr, MD - Dermatology
Last Revised January 28, 2011

Last Revised: January 28, 2011

Author: Healthwise Staff

Medical Review: Kathleen Romito, MD - Family Medicine & Randall D. Burr, MD - Dermatology

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