What is the largest organ of the human body?

The skin is indeed the largest organ of the human body, covering an average area of about 1.5 to 2 square meters in adults and accounting for approximately 15% of a person's total body weight. It serves multiple essential functions, including protection against environmental hazards, regulation of body temperature, sensation, and the synthesis of vitamin D.

The liver, while a vital organ involved in many metabolic processes, is significantly smaller in surface area compared to the skin. Similarly, the heart, which is crucial for pumping blood throughout the body, does not approach the extensive surface area of the skin. The brain, responsible for processing information and controlling bodily functions, is also not as large in terms of surface area when compared to the skin. Therefore, in terms of size and area, the skin stands out distinctly as the largest organ in the human body.