Sudden Swelling of Nipple Areola: Causes and Concerns

A lump suddenly appeared on the areola?

Hello Dr.
Zhang, I would like to ask about the small bumps that are normally present on the areola.
About two weeks ago, one of the small bumps on my left areola suddenly enlarged.
Initially, it was painful when pressed, and I thought it might be a pimple, but there was no whitehead.
After a few days, it stopped hurting, but today the same area has developed a round bump about the size of a mung bean.
It does not hurt when pressed, but there is a round lump on the areola.
What could this be? I am concerned it might be a blocked milk duct or another breast issue.
Additionally, I have not given birth or breastfed.
Thank you.

Miss Ye, 30~39 year old female. Ask Date: 2018/03/25

Dr. Zhang Kunmin reply Obstetrics and Gynecology

Hello, based on your description of symptoms, it is more likely due to inflammation or friction contact.
I recommend monitoring the situation for a few days, and if the symptoms persist, you may want to consult a breast surgeon or an obstetrician-gynecologist for evaluation.
Thank you! Wishing you safety and good health.
Dr.
Zhang

Reply Date: 2018/03/25

More Info

Sudden swelling of the nipple areola can be concerning, especially when it involves a change in the appearance or size of the areolar glands, which are typically small and may appear as little bumps or granules. These are known as Montgomery glands, and they play a role in lubrication during breastfeeding. However, when there is a sudden change, such as swelling or pain, it can raise questions about underlying conditions.

There are several potential causes for the sudden swelling of a small bump on the nipple areola:
1. Montgomery Gland Cyst: The Montgomery glands can become blocked or inflamed, leading to cyst formation. This is usually benign and may resolve on its own. If the cyst is not painful and does not change significantly, it may not require treatment.

2. Folliculitis: This is an inflammation of the hair follicles that can occur in the areola area. It may present as small, red, swollen bumps that can be tender. If it is folliculitis, it usually resolves with good hygiene and may require topical antibiotics if infected.

3. Sebaceous Cyst: These are non-cancerous lumps that can form when sebaceous glands become blocked. They are typically painless and can fluctuate in size. If they become infected, they may require drainage or surgical removal.

4. Infection: Conditions such as mastitis, which is an infection of breast tissue, can cause swelling and tenderness. This is more common in breastfeeding women but can occur in non-breastfeeding women as well. Symptoms may include redness, warmth, and pain in the affected area.

5. Hormonal Changes: Hormonal fluctuations during the menstrual cycle can lead to changes in breast tissue, including swelling or tenderness. This is usually temporary and resolves with the cycle.

6. Fibroadenoma or Other Benign Tumors: These are non-cancerous growths that can occur in breast tissue. They may feel like a firm lump and can vary in size. While they are typically benign, any new lump should be evaluated by a healthcare provider.

7. Paget's Disease of the Nipple: Although rare, this condition can cause changes in the nipple and areola, including swelling, redness, and flaking. It is often associated with underlying breast cancer, so it is essential to seek medical evaluation if there are concerning symptoms.

Given your description of the swelling being painless and not associated with other symptoms, it is likely to be a benign condition. However, it is crucial to monitor the area for any changes in size, color, or pain. If the swelling persists, increases in size, or if you notice any other symptoms such as discharge, redness, or changes in the skin texture, it is advisable to consult a healthcare provider for a thorough evaluation.
A healthcare provider may perform a physical examination and, if necessary, imaging studies such as an ultrasound to assess the area further. They may also consider a biopsy if there is any suspicion of a more serious condition.
In summary, while many causes of sudden swelling in the nipple areola are benign, it is essential to remain vigilant and seek medical advice if there are any concerns. Early evaluation can help rule out serious conditions and provide peace of mind.

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