What Causes Montgomery Tubercles During Pregnancy

Health Points

• Montgomery tubercles are small, oil-secreting glands that enlarge during pregnancy to support breastfeeding.
• Hormonal shifts trigger their appearance and growth in the second trimester.
• They play a protective role by lubricating and safeguarding the nipple area.

Many expectant mothers notice small bumps appearing around the areola in the second trimester. These bumps, known as Montgomery tubercles, are a natural response to rising hormone levels.

The glands produce oils that keep the nipple area moist and help protect it from infection. Their presence is considered a positive sign that the body is preparing for breastfeeding.

“The changes are completely normal and indicate that the breast tissue is getting ready for milk production,” explains Dr. Laura Jensen, an obstetrician at a major teaching hospital.

Most women see the tubercles fade or shrink after delivery and the completion of breastfeeding. Gentle cleansing with plain water is usually sufficient; harsh soaps or scrubbing can irritate the sensitive skin.

“If the area becomes red, painful, or develops discharge, it is important to contact a healthcare provider,” Dr. Jensen adds.