Which body part has the highest concentration of sebaceous glands?

The face has the highest concentration of sebaceous glands due to its specific anatomical features and the role of these glands in maintaining skin health. Sebaceous glands secrete sebum, an oily substance that plays a critical role in moisturizing the skin and providing a protective barrier against environmental aggressors. The face, particularly in areas like the forehead, nose, and chin (often referred to as the T-zone), is where these glands are most densely distributed.

This high concentration is advantageous because the facial skin is more exposed to elements and requires frequent hydration and protection. Unlike the hands and feet, which have fewer sebaceous glands due to their different functional needs and exposure, the face's unique requirements for elasticity and moisture make it a priority for these glands to be more abundant. The back does have sebaceous glands as well, but not to the same extent as the face.