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Breast Lump Removal (Lumpectomy): Read This Before Seeing A Specialist

Medically reviewed by Dr. Tan Chuan Chien, Consultant General Surgeon (Breast & Thyroid Surgery)

What Is a Lumpectomy?

Lumpectomy for breast cancer is a surgical procedure to remove cancerous growth or abnormal tissues from the breast. It is also called breast-conserving surgery as only a portion of the breast containing cancerous tissues is removed, thereby preserving the rest of the breasts that are healthy. This is unlike a traditional mastectomy, which removes the entire breast tissue from the breasts.

Why Is a Lumpectomy Done?

Lumpectomy is performed to remove the cancerous growth and prevent it from spreading to other parts of the body. It is also typically less invasive as compared to the entire removal of the breast tissues (mastectomy).

Lumpectomy is done if the following conditions are met:

  • Cancer only affects a portion of your breasts
  • The cancerous tumour is relatively small compared to your breast
  • Ample breast tissues are available to reshape your breast after the removal of the cancerous tissues
  • You are medically fit to undergo surgery and the follow-up radiation treatment

Radiation After a Lumpectomy

Radiation therapy is usually provided after a lumpectomy to remove any remaining cancer cells left in the breast. This significantly minimises the risk of cancer returning (breast cancer recurrence).

This process is generally painless, although minor complications may include skin irritation, redness or peeling.

Who Is Not Suitable for Radiation Therapy?

Radiation therapy is not recommended if you:

  • Are pregnant. Radiation therapy utilises high-energy x-rays, which can harm the fetus. It is recommended that you undergo radiation therapy only after delivery.
  • Previously received radiation treatment in the same breast.
  • Possess medical conditions such as Scleroderma, or other connective tissue diseases, which can increase your risks of radiation side effects.
  • Possess medical conditions such as Scleroderma, or other connective tissue diseases, which can increase your risks of radiation side effects.

How Will Your Breasts Change After a Lumpectomy?

Your breasts will likely change in terms of appearance and texture after a lumpectomy. This is due to the removal of cancerous breast tissues, which will decrease the size of your breasts. Furthermore, if you have a larger tumour than breast size ratio, your breasts may become asymmetrical.

However, you may opt for breast reconstruction or other cosmetic surgeries such as liposuction and oncoplastic breast surgery either during your lumpectomy or later. This is usually done to maintain a more natural appearance of your breast and also to restore breast symmetry.

What Happens During a Lumpectomy?

During a lumpectomy, your doctor will first administer anaesthesia before making incisions on your breasts. They will then locate the cancerous tumour and carefully remove it, together with a rim of some healthy breast tissues surrounding the tumour. This is done to ensure that no cancer cells are left behind. The tumour is then sent for testing.
Additionally, your surgeon may also remove any lymph nodes from your underarm to check if the cancer has spread.

Lastly, your surgeon will likely place small marking clips into the lumpectomy site to aid your radiologist to identify the area required for radiation therapy. The breast tissue is then sewn back together with stitches and then bandaged.

What Are Possible Complications?

Similar to any other surgery, there are also possible complications after a lumpectomy.

They may include:

  • Bleeding
  • Infection
  • Pain
  • Temporary swelling
  • Numbness due to the possibility of nerves being affected during tumour removal
  • Changes in the size and appearance of your breasts, especially if a large portion is removed.
  • Formation of scars at the surgical site

How to Prepare for a Lumpectomy?

Before your lumpectomy, you will likely have several appointments scheduled with your breast surgeon. They may perform physical examinations or imaging tests such as mammography to determine the shape and size of the tumour.

They may also ask about the type of medications you are currently taking or any allergies that you may have.

Some of the things that your doctor may further recommend include:

  • Avoid taking blood-thinning medications such as Aspirin up to a week before the surgery to reduce your risk of bleeding after the surgery.
  • Avoid eating or drinking 8 to 12 hours before the surgery.

It is also ideal that you bring along a family member or a close friend during the day of your surgery to provide support and help you take down crucial information relating to the surgery or post-surgery.

What to Expect After a Lumpectomy?

Lumpectomy surgery can be done as a day surgery procedure, meaning you can generally go home after the surgery.

After the surgery, you will be transferred to the recovery room, where you will be observed and monitored until your anaesthesia wears off. Depending on your situation, you may have a small tube inserted in your chest at the surgical site, where it will be attached to small bags for liquid to drain. Your doctor will likely remove this small tube within a week or so. During this period, you will have to empty the drain several times a day.

Following that, your doctor will likely advise you on how to care for yourself at home during the recovery period, which may include:

  • Avoiding any strenuous activities and ensuring that you get sufficient rest.
  • Taking any pain medications as prescribed and recommended by your doctor.
  • Wearing a bra with good support to minimise movement as much as possible to prevent additional pain.

If radiation therapy is required, it will typically commence within a few weeks after lumpectomy.

How Long Does It Take to Recover?

While most patients are able to go home the day after their surgery, the recovery period from a lumpectomy surgery varies for each person. The recovery process depends on the severity of your cancer, how much breast tissue is removed during the surgery, your general health, age and many other factors.

For 1 to 2 days after the surgery, you will likely feel fatigued and experience minor pain. Swelling and bruising may also last for several weeks.

It will generally take from about 2 to 3 weeks to a month to recover fully from the surgery. However, it depends on whether additional surgery had been performed, or further radiation therapy, as these additional treatments will likely lengthen the recovery time.

When Should You See Your Surgeon?

It is not the end even after you fully recover. You should schedule follow-up appointments with your doctor to review your condition.

Contact your doctor to seek for immediate medical attention if you experience:

  • A lump that does not disappear even after your menstrual period
  • Any changes in the size or appearance of your breasts
  • Blood or clear fluid discharge from your breasts
  • Bleeding, especially at your breast area
  • Breathing difficulties
  • Dizziness
  • Chest pain or tightness
  • Prolonged pain even after taking painkillers


Most of the time, the intent of breast cancer surgery is to remove the cancer completely. However, there is still a risk of breast cancer recurrence in some cases. As such, it is crucial to go for all of your follow-up appointments as scheduled with your doctor, and constantly take note of any abnormalities or symptoms.

It is also important to seek treatment early. Early detection and treatment of breast cancer significantly increases survival rate and a chance of recovery.

Consult our breast surgeon, Dr. Tan Chuan Chien, to know more about lumpectomy surgery, or discuss any concerns you may face:

As a supporter of personalised surgical care, I understand that no two patients are the same. I believe in tailoring management for each patient to meet each individual’s needs and expectations. A patient’s journey can be difficult and frustrating at times, so I strive to make this experience as pleasant and seamless as possible.

Dr. Tan Chuan Chien

Dr. Tan Chuan Chien

Consultant General Surgeon Breast & Thyroid Surgery
  • Bachelor of Medicine & Bachelor of Surgery (MBBS)- The University of Adelaide, Australia
  • Fellow of the Royal Australasian College of Surgeons (FRACS)
  • Full Registration, Singapore Medical Council (SMC) and Specialist Accreditation Board, Singapore (General Surgery)
  • Full General & Specialist Registration (General Surgery), Australian Health Practitioner Regulation Agency (AHPRA)
  • Completed Breast Surgery training through the BreastSurgANZ Fellowship programme
  • Fellow of the Academy of Medicine, Singapore (FAMS)

Dr. Tan Chuan Chien is a Fellowship-trained Breast and Endocrine Surgeon practicing as a Consultant General Surgeon at Gleneagles Hospital, Singapore. He also sees patients at Mount Elizabeth Novena Specialist Centre and Parkway East Medical Centre. Dr. Tan is a registered Specialist Surgeon (General Surgery) in both Singapore and Australia.

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