A burn is an injury or damage to the skin caused by extreme heat, flame, or any contact with heated objects or chemicals. Depending on the severity, burns can vary from minor to life-threatening. Some burns only affect the upper layer of the skin but sometimes underlying tissues can also be severely affected. Clinically, they are characterized by degree, with first-degree being least severe and third-degree being most severe. Read more: https://woundcaresurgeon.weebly.com/blog/full-thickness-third-degree-burns-symptoms-causes-and-treatment