A fibroadenoma is a benign breast tumor that develops from cells in the mammary glands and duct lining. It is most commonly found in women aged 20–30 years. Fibroadenomas are non-cancerous and do not increase the risk of developing breast cancer.
What are the symptoms of a benign breast tumor?
A benign breast tumor is typically a palpable, non-tender, slow-growing, mobile lump with well-defined borders. Sizes vary from about 2 centimeters to larger than 5 centimeters. It may appear as a single lump or multiple lumps, and can occur in one or both breasts.
How is a benign breast tumor diagnosed?
- Taking a medical history and performing a physical examination to assess the lump
- Imaging studies such as ultrasound and mammography, which often show a well-circumscribed round or oval mass within the breast tissue; in some cases, calcifications may be seen inside the mass
- Core needle biopsy to confirm the diagnosis and distinguish the mass from a cyst or breast cancer
How is a benign breast tumor treated?
The main treatment is surgical removal of the lump. Surgery is recommended when any of the following apply:
- The lump is larger than 2–3 centimeters
- The lump increases in size on follow-up
- There is pain at the lump that affects daily activities
- Biopsy findings raise suspicion for cancer
The earlier a breast abnormality is detected, the better the treatment outcome. Early detection helps lower the risk of breast cancer and prevents progression that can make treatment more difficult.
Breast cancer: screen early, know sooner, treatable. Breast Clinic, Synphaet Ramintra Hospital







