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Benign breast disease
85% of breast lumps are benign. If so, they probably fall in this category.
- Fibrocystic breast disease - benign growth abnormality of the breast, causing lumpiness and tenderness. It is very common in pre-menopausal women, and is often more pronounced around the time of menstruation.
- Fibroadenoma - a small tumour (growth) in the breast. They often develop in adolescent women and those in their early twenties, but can occur at any age. These lumps are benign and are not associated with an increased risk of breast cancer.
- Cysts - A cyst is a fluid filled lump. Breast cysts are most common in pre-menopausal women, who are between 40-55 years of age, and those who take hormone replacement therapy (HRT) at any age. They are usually benign and can usually be drained with a needle.
- Fat necrosis - Fat necrosis is a hard irregular lump, which is often caused by trauma. They usually disappear spontaneously.
- Lipoma - A lipoma is a fatty growth which causes a lump that changes the shape of the breast. It requires no treatment.