Tests and Procedures

Breast cancer surgery

What you can expect

During breast cancer surgery

Breast cancer surgery is done in a hospital. Before the procedure, you're given medicine (general anesthesia) that keeps you in a sleep-like state.

What happens during your surgery will depend on the operation, but you can expect:
  • An incision in your breast to remove cancer and surrounding tissue. How much tissue is removed will depend on whether you undergo lumpectomy to remove part of the breast tissue or mastectomy to remove all of the breast tissue. The placement and length of the incision depends on the location of the cancer within the breast.
  • An assessment of the lymph nodes in your armpit. During a sentinel node biopsy, the surgeon removes a few lymph nodes into which a tumor is most likely to drain first (sentinel nodes). These are then tested for cancer. If no cancer is present, no additional lymph nodes need to be removed.

    If cancer is found, the surgeon may remove more lymph nodes or recommend radiation therapy to your lymph nodes after surgery. Sometimes both lymph node treatments are combined.

  • Closure of the incision. The surgeon closes the incision with attention to your appearance. Dissolvable stitches are placed to reduce scarring.
  • Reconstruction, if you choose. If you are undergoing mastectomy and choose breast reconstruction, the reconstruction is most frequently started at the time of your cancer operation. In some cases, reconstruction may be delayed and done in a separate surgery.

After breast cancer surgery

After your surgery, you can expect to:

  • Be taken to a recovery room where your blood pressure, pulse and breathing are monitored
  • Have a dressing (bandage) over the surgery site
  • Possibly have pain, numbness and a pinching sensation in your underarm area
  • Receive instructions on how to care for yourself at home, including taking care of your incision and drains, recognizing signs of infection, and understanding activity restrictions
  • Talk with your health care team about when to resume wearing a bra or wearing a breast prosthesis
  • Be given prescriptions for pain medication and possibly an antibiotic
  • Resume your regular diet
  • Shower the day after surgery

Expect to spend one night in the hospital after mastectomy if you also undergo breast reconstruction. Those undergoing mastectomy without reconstruction or lumpectomy may leave the hospital the day of surgery.