The skin is the largest organ in the human body. It covers the entire external surface of the body and is composed of three layers: the epidermis, dermis, and hypodermis. The skin protects us from the environment, regulates body temperature, and helps us feel sensations.
While many sources state that the skin is the largest organ, there is some debate about whether the liver is the largest internal organ, depending on how "organ" is defined. Some argue that muscle tissue, taken as a whole, is the largest organ in the body since it comprises a large portion of the body's mass.
Regardless of the exact definition, the skin is certainly the largest organ that is easily identifiable as a distinct organ.
