The raised dots are working glands
The small bumps on the darker skin around the nipple are often called Montgomery tubercles. Each marks an areolar gland—a tiny gland that releases an oily substance onto the skin’s surface. The oil helps keep the areola supple, where thin, sensitive skin is exposed to rubbing from clothing and, during breastfeeding, repeated contact with a baby’s mouth.
These glands are related to oil-producing glands elsewhere on the body, but their location makes their role especially useful: they deliver their secretion right where the skin needs a protective coating. The bumps are not blocked pores or blemishes simply because they are visible.
A small part of the skin barrier
Skin stays more comfortable when it can retain moisture and move against nearby surfaces without becoming overly dry. An oily layer helps limit moisture loss and reduce friction, which can make delicate skin less prone to irritation. It does not make the area immune to soreness or cracking, but it is one part of the body’s ordinary protection system.
The bumps can look more prominent at some times than others, and their size and visibility vary from person to person. Their everyday purpose is easy to miss: each one is a tiny local source of lubrication, positioned exactly where sensitive skin faces frequent contact.
