What is a keloid scar, and why can it return after removal?
A keloid is excessive scar tissue that grows beyond the original wound and may itch or hurt. Dermatology treatment can improve it, but recurrence is possible. Excision alone may produce a larger recurrence, so a plan to reduce regrowth should be discussed.
Details
How does it differ from an ordinary scar?
It may follow a cut, burn, acne or piercing and continue growing. A hypertrophic scar generally stays within the original wound, whereas a keloid extends beyond it. An uncertain lump needs diagnosis before being treated as scar tissue.
Treatment is individual
Options include injections into the scar, silicone, freezing or laser, sometimes combined. If surgery is chosen, additional treatment and follow-up may help limit recurrence. Do not inject steroids or cut scar tissue yourself.
Avoid unnecessary skin injury
Tell clinicians about previous keloids before cosmetic procedures, piercings or tattoos. Seek early acne treatment and review for rapid growth or restricted movement. No cream guarantees prevention or permanent removal for everyone.
Related reading: How can scars be improved, and can they be removed completely?.