A burn occurs when heat, chemicals, sunlight, electricity, or radiation damages skin tissue.
Burns are categorized as first-degree, second-degree, third-degree, and fourth-degree burns
A fourth-degree burn is significantly more serious.
It affects the muscles and bones beneath the skin and the nerves themselves become destroyed.
Because the local tissues that are used to treat full-thickness burns are injured, the body is unable to mend them, necessitating excision or, in the worst-case scenario, amputation.
Following that, skin grafting from an undamaged area of the body, or even skin generated in tissue culture for grafting purposes, is used.