The Areolar glands, also known as Montgomery’s glands, are sebaceous glands in the areola.
Enlarged ones happen with pregnancy. They produce an oil-like substance that makes it easier for the breast tissue to deal with the hard sucking on the breasts that the newborn will do.
If you look at the breast, you will see a darker colored area around the nipple. This dark area is the areola. The glands look a little like big pimples.
Sometimes they get clogged but don’t try to ‘pop’ them. You can cause an infection. Massage, hot compresses, salt water compresses, and rubbing alcohol will help. But no squeezing!