What type of sweat glands become active at puberty?

Apocrine glands are the type of sweat glands that become active at puberty. These glands are primarily found in areas such as the armpits and groin. They secrete a thicker, milky fluid that is rich in proteins and lipids. The activation of apocrine glands during puberty is linked to hormonal changes, particularly the increase in sex hormones. This is why apocrine glands are often associated with body odor, as their secretions can be broken down by bacteria on the skin, producing a distinct smell.

In contrast, eccrine glands, which are responsible for regulating body temperature through the secretion of a more watery sweat, are active throughout life, starting in infancy. Sebaceous glands, which produce oil for the skin and hair, are also influenced by hormonal changes but do not primarily function as sweat glands. Understanding the distinctive roles of these different glands highlights the importance of puberty in the development of the apocrine type and its correlation with sexual maturity.