 A burn is a type of injury to skin , or other tissues , caused by heat , cold , electricity , chemicals , friction , or radiation . Most burns are due to heat from hot liquids , solids , or fire . Among women in many areas of the world the risk is related to the use of open cooking fires or unsafe cook <unk> . <unk> and smoking are other risk factors . Burns can also occur as a result of self harm or violence between people . 
