The skin you're in

Skin is the largest organ in the human body, but it’s easy to take it for granted. Unless we notice pain or itching or funny spots, most people don’t give it much thought.

However, the skin is critically important. It helps regulate our body temperature and fluid and electrolyte balance. It provides us critical information about our environment, and it protects us from invasion by the sea of germs we encounter every day. Some of the sickest patients doctors ever treat are those who have had significant skin loss, whether due to illness, like toxic epidermal necrolysis, or injury, like burns.

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