The short explanation
A fibroadenoma is a common benign lump made of glandular and fibrous tissue. It is most often found in women in their teens, twenties and thirties. A simple fibroadenoma does not turn into cancer, and having one raises breast cancer risk very little, if at all. That is why many doctors suggest leaving it alone once it has been confirmed. Many fibroadenomas stay the same size, some shrink, and a few grow, especially during pregnancy.
What depends on your situation
The parts of this that change from woman to woman. Uncertainty is stated, not hidden.
- Doctors usually confirm a fibroadenoma by ultrasound and sometimes a needle sample. Removal may be discussed if it is large, growing, causing discomfort or worry, or if the scan or sample is not typical.
- You may be asked to have a repeat ultrasound after some months to check it is stable.
- It is still useful to know how your breasts feel and to report any new lump, because a new one needs its own check.
What this answer cannot determine
The boundary of online education. These need a clinician who can see you.
- This cannot confirm that your lump is a simple fibroadenoma or that it will stay stable. Your scan report, and any biopsy, decide that.
Questions for your clinician
Take these with you. You can add any of them to an appointment card.
- Was this confirmed by ultrasound alone, or is a needle test advised?
- Should I have a repeat scan, and when?
- What changes should make me come back sooner?
- When would removal be worth considering?
When to seek help
Clinician-approved guidance for this topic. When in doubt, being seen is never the wrong choice.
Book an appointment soon
- See a clinician within a couple of weeks if the lump grows noticeably or a new lump appears.
Raise it at a routine appointment
- Keep any follow-up scan your doctor suggests and bring the old report so they can compare.
Sources
The evidence this explanation is built on.
- Breast lump NHS
- Breast diseases MedlinePlus (NIH)
- Breast cancer — symptoms NHS
Who wrote and reviewed this
Every AskHer answer names its author. A clinically reviewed answer also names the clinician who signed it off — if no clinician is named below, it has not been clinically reviewed.
- Author
- AskHer Editorial (AI-assisted draft) AskHer's editorial team — not an individual clinician Works in English, தமிழ், हिन्दी
- Clinical reviewer
- Nobody yet No clinician has signed this answer off, and no person on the editorial team has read it yet. That is what the “Written with AI assistance” label means. It is queued for an editor to read, and then for a clinician who works in this area. The sources it was drafted against are listed above.
- Review status
- Written with AI assistance — not yet reviewed by a person
- Last reviewed
- Not yet reviewed by a person
- Version
- 1
Correction history
Substantive changes are listed, not quietly edited away.
No corrections have been made since this answer was first published.
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