What are Montgomery’s tubercles?

They are part of glands that make oily secretions to keep the areola and the nipple lubricated and protected. The portion of the gland on skin’s surface is called Montgomery tubercles and identified by the round bumps are found in the areola or on the nipple itself. They can become much more pronounced and raised when the nipple is stimulated. The skin over the surface opening are lubricated and tend to be smoother than the rest of the areola. During pregnancy the Montgomery’s tubercles become increasingly visible on the nipple and areola.
The number varies from person to person but is in the range of 4-28.

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