What is the main characteristic of apocrine sweat glands?

The main characteristic of apocrine sweat glands is that they secrete sweat that is typically odorless when it is produced. However, this sweat can take on an odor when it is broken down by bacteria on the skin's surface. This secretion is often associated with emotional responses rather than temperature regulation.

Apocrine glands are primarily found in specific areas such as the axillary (armpit) region and groin, rather than being widespread like eccrine sweat glands, which are more involved in regulating body temperature through the release of perspiration that cools the skin. Although some glands might not be fully functional at birth and may develop later, the defining characteristic of apocrine glands remains tied to the characteristics of their secretion.