Changes in Fibrocystic Breast Lumps: What You Need to Know - Surgery

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Fibrocystic changes enlarged?


Hello, doctor.
Last September, I discovered a lump under my right breast and went to the hospital for an ultrasound.
Since it was movable and had smooth edges, the doctor diagnosed it as a fibrocystic mass.
I was advised to have regular follow-ups every six months to a year.
However, today (not during my menstrual period), I performed a self-examination and noticed that it has grown larger (I haven't checked it in between).
Can fibrocystic masses change size in such a short period of four months? Is there any danger? It is still movable and feels like a complete lump.
Thank you, doctor.

Enola, 20~29 year old female. Ask Date: 2023/01/15

Dr. Chen Bingze reply Surgery


Hello, it is possible for the size to change.
You can return to your original physician for a consultation to determine if another ultrasound is necessary.

Reply Date: 2023/01/15

More Info


Fibrocystic breast changes are a common condition that many women experience, characterized by the presence of lumps or cysts in the breast tissue. These changes are often influenced by hormonal fluctuations, particularly those related to the menstrual cycle. It’s important to understand that while fibrocystic changes are generally benign, they can cause discomfort and may lead to concerns about breast health.

In your case, you mentioned discovering a lump in your right breast that was diagnosed as a fibrocystic cyst. The fact that it is movable and has well-defined edges is reassuring, as these are typical characteristics of benign cysts. However, you are concerned about the lump increasing in size over a four-month period, which is a valid concern.

Fibrocystic breast lumps can indeed change in size and tenderness due to hormonal fluctuations, particularly in relation to your menstrual cycle. Many women notice that their breast tissue feels lumpier or more tender in the days leading up to their period, and this can sometimes lead to confusion about the nature of the lumps. However, significant changes in size or new lumps that develop should always be evaluated by a healthcare professional.

To address your specific concerns:
1. Size Changes: It is not uncommon for fibrocystic lumps to change in size over a short period. Hormonal changes can lead to fluid accumulation in the cysts, causing them to enlarge. However, if you notice a lump that has increased in size significantly or has changed in texture, it is essential to consult with your healthcare provider for further evaluation.

2. Potential Risks: While fibrocystic changes are generally benign, any new or changing lump should be assessed to rule out other conditions, including breast cancer. The characteristics you described (movable and well-defined) are typically reassuring, but monitoring is crucial. Regular follow-ups as recommended by your physician are important to ensure that any changes are tracked over time.

3. Self-Examination: Regular self-examinations are a good practice, as they help you become familiar with the normal texture of your breast tissue. If you notice any new lumps, changes in existing lumps, or any other unusual symptoms (such as changes in skin texture, discharge from the nipple, or persistent pain), you should seek medical advice promptly.

4. Follow-Up: Since you were advised to have regular follow-ups, it’s important to adhere to this schedule. If you have not had a follow-up in the last four months, it would be prudent to schedule an appointment with your healthcare provider. They may recommend imaging studies, such as an ultrasound or mammogram, to assess the lump further.

5. Lifestyle Factors: While fibrocystic changes are primarily hormonal, certain lifestyle factors can influence breast health. Maintaining a healthy diet, managing stress, and regular exercise may help alleviate some symptoms associated with fibrocystic breasts.

In conclusion, while changes in fibrocystic lumps can occur and are often benign, it is essential to remain vigilant and proactive about your breast health. Regular check-ups and self-examinations are key components of monitoring any changes. If you have any concerns or notice significant changes, do not hesitate to reach out to your healthcare provider for further evaluation and peace of mind.

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