What should you know about left modified radical mastectomy?

The surgeon removes breast tissue, the nipple and areola, and lymph nodes as planned for the cancer. Unlike an older radical operation, the main chest muscles are generally left in place. The exact operation depends on the tumour, breast anatomy, imaging, and lymph-node findings. A [Mastectomy](/treatments/surgical-oncology/mastectomy/) is different from a [Lumpectomy](/treatments/surgical-oncology/lumpectomy/), which removes the tumour with a surrounding margin while keeping most of the breast.

The pathology report examines the removed tissue and nodes. It can guide decisions about additional treatment. Some people discuss [Chemotherapy Before Surgery](/treatments/systemic-therapy/neoadjuvant-chemotherapy/) before an operation, while others consider reconstruction during or after surgery.

Ask which medicines affect bleeding, how drains will be managed, and what arm movements are allowed. Arrange loose clothing, transport, and help at home. Keep the wound and drain sites clean as instructed, walk regularly, and perform only the exercises approved by your team. A prosthesis or [Breast Reconstruction](/treatments/surgical-oncology/breast-reconstruction/) can be discussed before surgery or later. Gentle shoulder movement helps prevent stiffness, but do not force painful motion.

Call the surgical team for increasing redness, warmth, swelling, wound separation, foul drainage, fever, uncontrolled pain, or a drain that stops suddenly or fills rapidly. Seek urgent help for severe breathlessness, chest pain, fainting, or sudden swelling of the face or arm. Later, report persistent heaviness, tightness, or swelling of the arm, hand, breast area, or chest wall because [Lymphoedema Therapy](/treatments/survivorship-and-rehabilitation/lymphoedema-therapy/) may be useful.

Ask: Which breast and lymph-node tissues will be removed? Will the chest muscle be preserved? Will drains be needed and for how long? What will pathology test? When can I wash, drive, work, exercise, and wear a bra? How will pain and shoulder stiffness be managed? What reconstruction or prosthesis choices suit me?