Sweat Gland -

: A third, less common type found only in the armpits that develops from eccrine glands during puberty and shares properties of both main types. Why Do We Sweat? - Cleveland Clinic

There are two primary classifications of sweat glands, each with distinct locations and roles: sweat gland

Sweat glands are small, coiled tubular structures located in the deep layers of your skin that act as your body’s built-in cooling and filtration system . Humans typically have between of these glands distributed across the body surface. Core Types of Sweat Glands : A third, less common type found only