Lumpectomy: What to Expect

Lumpectomy removes a breast tumour with a small rim of surrounding tissue while keeping most of the breast.

Also called breast-conserving surgery or wide local excision, it may include removal of selected lymph nodes to check whether cancer cells have travelled beyond the breast.

Planning usually includes breast imaging, a tissue diagnosis, and a discussion of the tumour's position and size. A [Core Needle Biopsy](/treatments/diagnostics-and-staging/core-needle-biopsy/) may establish the diagnosis before surgery. During the operation, the surgeon removes the target and a tissue margin; a wire or marker may help locate an area that cannot be felt. The specimen and, when needed, lymph nodes go to pathology.

Common effects include bruising, swelling, tenderness, temporary numbness, a change in breast shape, and tiredness. The scar may feel firm while healing. Serious concerns include infection, a collection of blood or fluid, wound opening, or bleeding that does not settle. Increasing redness, fever, severe swelling, worsening pain, or fluid from the wound should prompt urgent advice.

The expected result depends on the tumour's biology, margin findings, lymph-node results, and any treatment given after surgery. Lumpectomy is designed to remove the known area while preserving breast tissue, but it is followed by planned surveillance and may be followed by [Radiotherapy](/treatments/radiation-oncology/radiotherapy/) or medicines. Pathology gives the team the information needed to discuss whether more surgery is needed.

Lumpectomy is a local operation, so it does not treat cancer cells elsewhere in the body. The final pathology report can change the next treatment recommendation.

It may be offered for selected people with an early breast tumour or ductal carcinoma in situ when the area can be removed with an acceptable breast shape and clear margins. It can also be used for some cases of [Paget Disease of the Breast](/conditions/paget-disease-of-the-breast/). The choice depends on imaging, pathology, breast size, tumour distribution, previous treatment, and personal preference.

You meet the breast and anaesthetic teams, review medicines, and receive instructions for the day of surgery. The target is located using examination, imaging, or a marker. After removal, the wound is closed and the tissue is sent for analysis. If lymph nodes are sampled, the surgeon explains this separately and the results are discussed at follow-up.

Many people return home the day of surgery, although the timing depends on the operation and recovery from anaesthesia. Gentle arm movement helps prevent stiffness; follow the advice on dressings, bathing, driving, and lifting. Bruising and swelling usually ease gradually, while altered sensation around the scar can take longer to settle.

Ask how the incision, tumour position, and lymph-node procedure may affect breast appearance, sensation, and arm movement. Rare but urgent problems include infection, significant bleeding, or severe swelling. Report new symptoms promptly so the team can examine the wound and treat complications early.

A [Mastectomy](/treatments/surgical-oncology/mastectomy/) removes the whole breast and may be considered when there are several areas of disease, the area is extensive, or radiotherapy is unsuitable. Some people need systemic treatment before or after surgery. Your team compares these paths using the pathology and imaging rather than a single factor.

Seek care from a breast team that includes a breast surgeon, radiologist, pathologist, and oncology specialists. Before consenting, ask how the tumour will be located, whether lymph nodes will be sampled, when pathology will be ready, and what follow-up is planned.