The operation is performed under general anaesthesia. A radioactive tracer is injected into the breast on the morning of the operation to detect sentinel lymph nodes. Sentinel lymph nodes may also be traced by using a blue dye, which may stain your urine blueish green. The lymph nodes taking up the tracer are removed as samples, and sent to the pathologist for examination during the operation. If a metastasis is found, a wider axillary lymph node excision is performed. A drain in inserted into the wound at the end of the operation.


You can move about as soon as you feel up to it after surgery. During your sick leave, you should avoid strenuous physical exercise. To avoid swelling and problems with moving the shoulder joint, you should perform the exercises instructed by your physiotherapist. You will receive the instructions on discharge from hospital. You will also be given a temporary breast prosthesis, and your breast nurse will call you within a few days after surgery.

Wound care

You can remove the thicker wound dressings and take a shower on the day after surgery. The wound is closed with absorbable stitches. The wound tape can be removed after one week. Going to the sauna, taking a bath, and swimming are allowed two weeks after surgery. Drain should be removed at your own health centre according to your surgeon’s instructions, but not later than 7 days after surgery. Some fluid may be trapped in the wound area after this. It can be drained with a needle and a syringe on your follow-up visit to the Surgical Outpatient Clinic. If the operation area collects a lot of fluid that disturbs, any doctor can drain it in your own health centre or you can contact nurses at the Surgical Outpatient Clinic, tel. (06) 213 1533 for the procedure. If there are no signs of infection, the drainage is not an urgent procedure, and no laboratory tests are necessary.

Pain management

A local anaesthetic agent is often injected into the wound at the end of the operation to reduce postsurgical pain. You are recommended to take painkillers regularly for 1–4 days and after that when necessary.

Contact us

If you experience signs or symptoms of infection (increasing pain, heavy swelling, heat, redness, drainage of pus from the wound) or other problems, please contact the treating unit.


  • Day Surgery Unit
  • Oncology Outpatient Clinic
  • Accident & Emergency Clinic
  • Your own health centre or occupational health unit  
10/17/2019 päiväkirurgia 2