Skin is the largest organ in the body serving many functions essential to life. It is said to be an important expression of beauty. Skin and its appendages, hair and nails together, make or mar the natural, physical beauty of a person. It is also considered as a major sex organ as its feel is sensually vital.
Skin protects the body and maintains body fluids and chemicals.
It also regulates body temperature by controlling the inflow and outflow of heat. A major portion of calories provided to the body by the digestive system and utilized in physical work is eliminated through the skin. Thus, skin also determines whether a person is thin or stout or even overweight. Skin also acts as a deterrent against toxins, germs and other hazards. This is the main reason why burn patients with extensive skin damage suffer from several infections and loss of body fluids .