It’s generally recognised that sunburn is a Bad Thing in that it increases your risk of skin cancer. OK, that makes sense, UV light damages DNA.
But what about normal burns, and/or long-term skin exposure to hot but not necessarily burning temperatures, such as chefs might get? I know proteins can easily be denatured by heat, but is DNA also easily damaged by heat?
Probably not: MJH Life Sciences® | Informing Healthcare Professionals
You can always find some dissenting opinions, though:
"3. Wounds
Chronic non-healing wounds such as chronic ulcers and thermal burns and other non-healing wounds have an increased risk of basal cell carcinomas. " http://www.skincancerguide.com/scus_squamous/what_causes_squamous_cell_cancer.html