Cryotherapy

Targeted Treatment for Selected Skin Lesions

Cryotherapy is a treatment that uses very low temperatures to freeze and destroy selected superficial skin tissue. It is commonly performed using liquid nitrogen, which is applied directly to the lesion for a controlled period. The treated tissue subsequently heals and is gradually replaced as part of the body’s normal repair process.

At YT Medical, cryotherapy is provided following assessment of the area rather than simply freezing any unwanted mark or lesion. Many skin lesions are harmless, but different conditions can look similar, and lesions that are unexplained, changing or clinically concerning should be appropriately investigated rather than cosmetically removed.

What Can Cryotherapy Be Used For?

Cryotherapy may be considered for selected benign superficial skin lesions where freezing is an appropriate treatment method. Suitability depends on the type, size, location and characteristics of the lesion as well as the patient’s skin and medical history.

Not every skin lesion is suitable for cryotherapy. Anything that has changed in size, shape or colour, bleeds unexpectedly, repeatedly fails to heal or has other concerning characteristics may require assessment through an appropriate GP or dermatology pathway before removal is considered.

The objective is therefore not simply to remove the visible lesion, but first to establish that cryotherapy is a reasonable and appropriate treatment.

What Happens During Treatment?

Liquid nitrogen is applied directly to the selected lesion using a controlled technique. Treatment itself is usually relatively brief, although the freezing process can cause a sharp stinging, burning or uncomfortable sensation.

Afterwards, the area commonly becomes red and tender and may develop swelling or a blister. A crust or scab can subsequently form as the treated tissue heals. Patients should allow this process to occur naturally and avoid picking the area prematurely.

Some lesions respond to one treatment, while others require repeat cryotherapy after the skin has adequately recovered. The need for additional treatment depends on the type, thickness and response of the lesion.

Healing, Pigmentation and Scarring

Cryotherapy deliberately damages targeted tissue, so a visible healing period should be expected. Temporary changes in skin colour can occur and, in some cases, the treated area may remain lighter or darker than the surrounding skin.

There is also a small risk of infection, scarring or persistent alteration in pigmentation. Changes in colour can be particularly noticeable in patients with naturally darker skin, so this will be considered during assessment.

No lesion-removal technique can guarantee an invisible result. The potential improvement needs to be balanced against the possibility of leaving a mark where the lesion was previously present.