How effective is lumpectomy for breast cancer?

Lumpectomy removes the breast tumour and a small rim of surrounding tissue rather than removing the whole breast. The laboratory examines the specimen to check whether cancer cells reach the edge, known as the margin. If the margin is not clear, another operation may be discussed.

The decision also considers tumour size and position, whether there is more than one area of cancer, the cancer subtype, lymph-node findings, and your general health. For many people with an early, localised breast cancer, lumpectomy is followed by radiotherapy to reduce the chance of cancer returning in the treated breast. Some people also need hormone therapy, chemotherapy, targeted treatment, or an operation on nearby lymph nodes.

Lumpectomy is not automatically less effective than mastectomy. For people who are suitable for breast-conserving treatment, lumpectomy with the recommended radiotherapy and other treatment can provide cancer control comparable to mastectomy. Your care team will explain which approach fits the disease and your priorities.

Ask the breast surgeon how the planned incision and tissue removal may affect breast shape, and whether a wire or another imaging marker will guide the operation. Take the pathology appointment seriously: the margin, lymph nodes, and tumour features help determine the next step.

After surgery, follow wound-care and activity instructions, wear the recommended support, and keep follow-up appointments. Mild swelling, bruising, tenderness, or a small fluid collection can occur. Contact the surgical team if these symptoms are worsening or interfering with recovery, because they may need assessment.

Seek urgent medical help for trouble breathing, chest pain, fainting, or sudden heavy bleeding. Contact your surgical team promptly for a fever, spreading redness, increasing warmth, pus or a bad smell from the wound, rapidly increasing swelling, or pain that is not controlled by the prescribed plan.

Useful questions include: Is breast-conserving surgery suitable for the location and extent of my cancer? What does a clear margin mean in my case? Will I need radiotherapy or other treatment after surgery? How might surgery change the breast? What symptoms should prompt a call during recovery?