When is cryotherapy recommended for keloid scars?

A keloid is scar tissue that grows beyond the original wound edges. Freezing can damage part of the excess scar and soften or flatten it during healing. Because keloids can return after treatment, cryotherapy is often considered alongside other options rather than as a one-step answer.

The procedure may cause pain, swelling, blistering, temporary numbness, colour change, or a sore. The risk of pigment change can be more noticeable in darker skin, and the clinician may avoid freezing when the scar is large, deeply attached, or close to a sensitive structure.

Have the scar examined before arranging removal. Tell the dermatologist when it started, whether it is growing, and whether you have formed keloids after piercings, injections, acne, or surgery. Share any history of poor wound healing, pigment changes, or reactions to local anaesthetic.

If freezing is selected, follow instructions for protecting the treated site and keeping it clean. Avoid rubbing, picking, or applying unapproved scar products while the skin is open. Attend planned follow-up so the clinician can assess flattening and decide whether additional care is needed.

Arrange prompt assessment if a scar changes rapidly, bleeds without clear injury, ulcerates, or becomes persistently painful. After treatment, report spreading redness, pus, fever, severe pain, or delayed healing. A new lump at an old wound should be assessed rather than assumed to be a keloid.

Ask whether the scar is a keloid or another type of raised scar, what benefit freezing could offer, and whether combination treatment is advisable. Discuss pigment change, recurrence, pain control, wound care, follow-up timing, and alternatives such as injections or pressure therapy.