Benign breast conditions
Most breast conditions are benign, not cancer. Fibroadenomas, cysts, breast pain and infections are common, and many need reassurance and monitoring rather than treatment. Establishing that a condition is benign is a finding, not an assumption.
Fibroadenomas
A fibroadenoma is a benign, solid growth of breast tissue, most common in younger women. It typically feels smooth, firm and mobile, often described as moving away from the fingers when pressed.
Once confirmed, many fibroadenomas are simply monitored. Removal is considered if one is large, growing, causing symptoms, or if the diagnosis is uncertain.
Breast cysts
Cysts are fluid-filled sacs. They are common, particularly in the years approaching menopause, and can appear quickly and be tender.
A simple cyst on ultrasound needs no treatment. If a cyst is painful it can be drained with a fine needle, which usually relieves the discomfort immediately.
Breast pain
Breast pain is extremely common and is usually not caused by cancer. It is often cyclical, varying with the menstrual cycle, and may affect both breasts.
Pain is a poor discriminator in breast disease. Painful lumps are frequently benign, and painless ones are not automatically safe. The absence of pain is not reassurance. It is simply the absence of pain.
Persistent pain confined to one spot that does not vary with the cycle is worth assessing.
Nipple discharge
Discharge from both nipples, from several ducts, on squeezing, is usually benign.
Discharge that is spontaneous, from one duct in one breast, and particularly if it is blood-stained, should be assessed.
Breast infection and abscess
Mastitis is inflammation of the breast, commonly associated with breastfeeding but not exclusive to it. It usually responds to antibiotics and continued milk drainage.
If an abscess forms, it may need drainage, often with a needle under ultrasound guidance rather than an incision.
Any breast infection that does not settle as expected should be reassessed, because a small number of cancers can present with inflammatory changes.
Common questions
Does a benign lump need to be removed?
Usually not. Many benign lumps are monitored rather than removed. Removal is considered if the lump is large, growing, causing symptoms, or if the diagnosis cannot be established confidently without it.
Can a fibroadenoma turn into cancer?
A simple fibroadenoma is a benign condition and is not regarded as turning into breast cancer. Any lump that changes in size or character should still be reassessed.
My breast pain comes and goes with my cycle. Should I worry?
Cyclical breast pain affecting both breasts is common and usually benign. It is still worth mentioning at a consultation, particularly if it is severe or interfering with daily life, because it can often be managed.
Still not sure whether it needs looking at?
Most breast changes turn out to be benign. Working out which ones are is what an assessment is for, and the guides here explain what that involves before you go.