What is the primary function of sebaceous glands?

The primary function of sebaceous glands is to produce oil for the skin, known as sebum. Sebum plays a crucial role in maintaining the skin's moisture balance, providing a protective barrier, and keeping the skin soft and pliable. This oil serves not only to prevent the skin and hair from becoming too dry but also helps to protect against harmful bacteria and fungi, contributing to overall skin health.

Sebaceous glands are typically associated with hair follicles and are found throughout most areas of the skin, except for the palms and soles. By secreting sebum onto the skin's surface, these glands help to create a natural protective coating, reducing water loss and preventing the skin from becoming excessively dry or damaged. This physiological function is vital for the maintenance of healthy skin and hair.