Breast Lumpectomy

What this procedure is

A lumpectomy is a surgery to remove a tumor or an abnormal area from the breast. It is often called breast-conserving surgery because the surgeon only removes the lump and a small amount of the healthy tissue around it. This allows you to keep most of your natural breast.

Your clinician may also use other names for this procedure, such as:

• Partial mastectomy
• Segmental mastectomy
• Wide local excision

The main goal is to remove the unhealthy cells while leaving the breast looking as much like it did before as possible.

What it treats or fixes

This procedure is most often used to treat early-stage breast cancer. It is a way to physically remove the cancer from the body. By removing the tumor and a "margin" (a thin layer of healthy tissue around the tumor), doctors work to ensure no cancer cells are left behind in that area.

After the surgery, your clinician may suggest radiation therapy. This is a common follow-up treatment that uses high-energy rays to kill any microscopic cancer cells that might still be in the breast tissue. Using these two treatments together helps lower the chance of the cancer returning.

How common it is & where it's done

Lumpectomy is a very common and standard treatment option for many people. It is often the preferred choice when the tumor is small and located in only one part of the breast.

The procedure is usually performed in a hospital or a specialized surgical center. In many cases, it is done as an outpatient procedure, which means you may be able to go home on the same day as the surgery. Your medical team will monitor your recovery and let you know when it is safe to return home.

Recovery: What to Expect

Most people are able to go home the same day as their lumpectomy (a surgery to remove a breast lump and a small amount of healthy tissue around it). You may feel some mild soreness or tiredness for a few days. Your clinician may suggest wearing a soft, supportive bra even while sleeping to help reduce movement and keep you comfortable during the initial healing phase.

It is helpful to take it easy for the first few days. Your clinician may advise you on when it is safe to return to your normal exercise routine or lift heavy objects. Most people find they can return to work and daily activities within a week or two, depending on how they feel.

Risks & Possible Complications

• Swelling and Bruising: It is common to have some bruising or swelling in the breast area, which usually fades over a few weeks.
• Changes in Appearance: The breast may look slightly smaller or have a different shape after the area heals. This is a normal result of removing the tissue.
• Infection: While uncommon, your clinician may ask you to watch for signs like increased redness, warmth, or a fever. If you notice these, you should contact your care team.
• Fluid Buildup: Sometimes fluid can collect under the skin (called a seroma). If this happens, your clinician may choose to drain it during a follow-up visit to help you feel more comfortable.

Outcomes & Long-Term Results

A lumpectomy is often called breast-conserving surgery because it allows you to keep most of your natural breast. For many patients, having a lumpectomy followed by radiation therapy is just as effective as a mastectomy (removing the entire breast). This approach focuses on removing the cancer while maintaining the look and feel of the breast as much as possible.

Long-term care involves regular check-ups and imaging, such as mammograms. These visits help your clinician monitor your recovery and ensure you stay healthy. Your care team will create a follow-up plan tailored to your specific needs to provide the best long-term results.

Emotional Support & Reassurance

It is very common to feel a mix of emotions, including anxiety or relief, after surgery. Taking care of your emotional health is just as important as your physical recovery. You do not have to go through this alone, and many people find that their feelings become more manageable as they move through the recovery process.

Your clinician may suggest resources like support groups or counseling to help you process your feelings. Many people find that talking with others who have had similar experiences provides comfort and a sense of community. Remember that your medical team is dedicated to supporting your overall well-being and is available to answer any questions you may have.

Why doctors recommend it

A lumpectomy is often called breast-conserving surgery. Your clinician may recommend this procedure if a tumor is small enough to be removed while leaving most of the breast tissue in place. It is a common choice for early-stage breast cancer because it is less invasive than a mastectomy, which is the surgical removal of the entire breast.

Doctors often suggest this option because research shows that for many patients, a lumpectomy followed by radiation therapy is just as effective as removing the whole breast. Your care team will consider the size of the tumor, its location, and your overall health to determine if this is the right path for you.

Urgent vs planned treatment

A lumpectomy is almost always a planned treatment rather than an emergency. Once a biopsy (a test where a small tissue sample is taken) confirms the presence of cancer or abnormal cells, you will work with your surgical team to schedule the procedure. This allows time for you to understand your diagnosis and prepare for recovery.

In some cases, your clinician may suggest other treatments first, such as chemotherapy or hormone therapy. This is a planned approach designed to shrink the tumor before surgery, which can make the lumpectomy more effective. Because it is not an emergency, you usually have time to discuss the benefits and risks with your family and medical team.

Goals of treatment

The main goal of a lumpectomy is to remove the cancer while keeping the breast looking as natural as possible. During the surgery, the doctor removes the tumor along with a small rim of healthy tissue around it, called a margin. Success is often defined by achieving "clear margins," which means no cancer cells are found at the very edge of the tissue that was removed.

Other goals of this treatment include:

• Reducing the risk of the cancer returning in the same breast.
• Maintaining the shape and sensation of the breast as much as possible.
• Providing a shorter recovery time compared to more extensive surgeries.

After the surgery, your clinician may recommend additional treatments, like radiation, to help ensure any remaining microscopic cells are treated. The ultimate goal is to provide a balance between effective cancer treatment and your long-term quality of life.

Who may benefit

A lumpectomy is often called breast-conserving surgery. This means the surgeon removes the cancer and a small area of healthy tissue around it, rather than removing the entire breast. This procedure is typically an option for people with early-stage breast cancer where the tumor is small and located in only one area of the breast.

Many patients benefit from this choice because it is less invasive than a mastectomy and allows them to keep most of their natural breast tissue. Your clinician may recommend this surgery if they believe the cancer can be completely removed with clear margins (edges that are free of cancer cells) while maintaining the appearance of the breast.

In most cases, this surgery is followed by radiation therapy. This combination is designed to lower the risk of the cancer returning in the same breast. For many patients, the long-term survival rates for a lumpectomy followed by radiation are similar to those of a full mastectomy.

When it may not be the right option

While a lumpectomy is a common choice, it may not be the right fit for everyone. Your care team may suggest a different approach if the tumor is very large compared to the size of the breast, or if there are multiple tumors in different areas of the breast. This is sometimes called multicentric cancer.

Other factors that might make a lumpectomy less ideal include:

• Prior radiation: If you have already had radiation therapy to that breast in the past, you may not be able to have it again, which is usually required after a lumpectomy.
• Certain health conditions: People with specific connective tissue diseases, such as lupus or scleroderma, may have a harder time healing from radiation therapy.
• Pregnancy: Radiation therapy can be harmful to an unborn baby. If you are pregnant and cannot delay radiation until after delivery, a lumpectomy may not be recommended.
• Clear margins: If the surgeon cannot get a clear rim of healthy tissue around the tumor after trying, a more extensive surgery might be necessary.

Questions to ask your care team

Deciding on the right surgery is a personal process. It can be helpful to bring a list of questions to your appointment to help you feel more confident in your decision. You may want to ask:

• Is a lumpectomy a safe option for my specific type and stage of cancer?
• How much tissue will be removed, and how will my breast look after I heal?
• Will I definitely need radiation therapy after this surgery, and for how long?
• Will you be checking my lymph nodes (small glands that filter fluid) during the procedure?
• What is the risk of the cancer coming back if I choose this surgery over a mastectomy?
• How long is the recovery period before I can return to work or exercise?

In the procedure room

When you enter the procedure room, you will see a team of healthcare professionals ready to care for you. This team usually includes your surgeon, nurses, and an anesthesiologist (a doctor who manages pain and sleep during surgery). You will be helped onto a padded surgical table and made comfortable.

Before starting, the team will perform a safety check called a "time-out." They will confirm your name and the details of the procedure to ensure everything is correct. This is a standard step designed to keep you safe.

High-level steps

A lumpectomy is also called breast-conserving surgery because the goal is to remove the cancer while keeping as much of the natural breast as possible. Here is what typically happens:

• The Incision: The surgeon makes a small cut in the breast to reach the tumor.
• Removal: The surgeon removes the tumor and a small "margin" of healthy tissue around it. Removing this extra tissue helps make sure no cancer cells are left behind.
• Lymph Node Check: Your clinician may also remove one or more lymph nodes (small structures that filter fluid) from under your arm to see if the cancer has spread.
• Closing the Site: The surgeon closes the area using stitches, which are often the type that dissolve on their own, or medical tape.

Anesthesia and pain control

To keep you comfortable, you will receive medicine so you do not feel pain during the surgery. Most often, this is general anesthesia, which puts you into a deep sleep. In some cases, your clinician may use local anesthesia to numb the breast area along with medicine to help you feel very relaxed or sleepy.

After the surgery, the area may feel sore or tender. Your care team will provide instructions on how to manage this at home, often using common over-the-counter pain relievers or other prescribed options.

Monitoring and safety steps

Your safety is the top priority during the procedure. Specialized monitors are used to track your heart rate, blood pressure, and breathing throughout the entire surgery. This allows the team to make adjustments instantly if needed.

If the tumor is very small, a "localization" step might have happened just before surgery. This involves using a thin wire or a tiny marker to show the surgeon exactly where the tumor is located. This helps the surgeon be as precise as possible while removing the tissue.

Immediately after the procedure

Once the surgery is finished, you will be moved to a recovery room. As the anesthesia wears off, you may feel groggy, chilly, or have a slightly sore throat. These feelings are normal and usually fade quickly.

You will notice a bandage over the surgical site. You might feel some numbness, pressure, or a "tugging" sensation in the breast or under the arm. Most patients are able to go home the same day once they are fully awake and comfortable.

Typical procedure length

The surgery itself usually takes between 1 and 2 hours. If the surgeon is also checking lymph nodes, it may take a bit longer. You should plan to be at the hospital or surgery center for several hours to include the time needed for check-in, preparation, and recovery.

Common approaches (open vs minimally invasive)

Breast-conserving surgery is the general term for procedures that keep as much of the breast as possible. Doctors often use terms like lumpectomy, partial mastectomy, or segmental mastectomy to describe this surgery. The standard approach involves making a surgical cut (incision) to remove the cancer.

The goal is to remove the tumor along with a small amount of normal, healthy tissue around it. This healthy tissue is called a margin. Unlike more extensive surgeries that remove the entire breast, this approach focuses only on the area containing the cancer. Your surgeon may also remove some lymph nodes from under the arm during the same operation to check if the cancer has spread.

Partial vs total

It is helpful to understand that a lumpectomy is considered a partial removal of breast tissue. The surgeon takes out the cancer but leaves the rest of the breast intact. This option is often chosen for smaller tumors or when the cancer is found in only one area of the breast.

In contrast, a total removal of the breast is called a mastectomy. While this is a different procedure than a lumpectomy, doctors compare these options when planning treatment. A partial approach (lumpectomy) is not always applicable. For example, if a tumor is very large compared to the breast size, or if cancer is found in many different parts of the breast, a total removal might be recommended instead.

Revision or repeat procedures

After a lumpectomy, a pathologist examines the tissue to check the margins. If the outer edges of the removed tissue are free of cancer cells, this is called “negative” or “clear” margins. However, if cancer cells are found right at the edge, it may mean some cancer was left behind.

If margins are positive (showing cancer cells), a revision or repeat surgery is often needed. This second procedure, sometimes called a re-excision, aims to remove the remaining cancer cells to achieve clear margins. If clear margins cannot be reached after repeat attempts, your clinician may recommend removing the remaining breast tissue.

Tests and imaging that may be done

Before a lumpectomy, your care team needs to know the exact location and size of the tumor. You will likely undergo imaging tests to help the surgeon plan the procedure. Common imaging tests include:

• Diagnostic mammography: An X-ray of the breast used to look closely at the lump.
• Ultrasound: Uses sound waves to create pictures of the breast tissue.
• Breast MRI: Magnetic resonance imaging may be used to get a more detailed view of the breast.

Your clinician will also review your biopsy results. This includes checking the tumor for specific characteristics, such as hormone receptors (estrogen and progesterone) and HER2 status. These details help doctors decide if you need other treatments, such as chemotherapy, before surgery.

Medication adjustments

Your healthcare team will review all the medicines, vitamins, and supplements you currently take. It is important to tell them about everything you use. Your clinician may ask you to adjust your schedule or stop taking certain products for a short time before the surgery.

Only stop medicines if your clinician instructs you. Do not make changes on your own. In some cases, doctors prescribe treatment before the surgery (called neoadjuvant therapy). This might include chemotherapy or hormone therapy designed to shrink the tumor, making it easier to remove during the lumpectomy.

Day-before and day-of instructions

Your surgical team will provide a specific checklist to help you get ready. This often includes rules about when to stop eating and drinking before your arrival time. On the day of the surgery, the staff will prepare you for the operating room.

If the tumor cannot be felt from the outside (nonpalpable), a radiologist may perform a procedure called needle localization or wire localization just before the surgery. During this step:

• Imaging is used to guide a thin wire or a small radioactive seed into the breast.
• This marker points to the exact spot of the tumor.
• The surgeon uses this guide to find and remove the tissue accurately.

General surgical risks

Breast lumpectomy is a common procedure, and serious problems are rare. However, like any operation, there are standard risks involved. Your surgical team takes many precautions to keep you safe and comfortable.

General risks may include bleeding or bruising around the incision site. There is also a chance of infection where the skin was cut. Some patients may experience a reaction to anesthesia (the medicine used to keep you asleep or numb), though your care team monitors you closely to prevent this.

Procedure-specific complications

Because this surgery involves breast tissue and sometimes the lymph nodes under the arm, there are specific side effects to watch for. These do not happen to everyone, but it is helpful to be aware of them.

• Fluid buildup: A pocket of clear fluid (called a seroma) or blood (called a hematoma) may collect under the skin where tissue was removed.
• Lymphedema: If lymph nodes were removed, there is a risk of swelling in the arm, hand, or chest wall. This is caused by a buildup of lymph fluid.
• Changes in sensation: Nerves in the area may be affected, leading to numbness, tenderness, or shooting pains in the breast or upper arm.
• Need for more surgery: Sometimes, after the tissue is analyzed in the lab, doctors find cancer cells at the very edge of the removed tissue. This is called a "positive margin," and your clinician may recommend a second surgery to ensure all cells are removed.

How complications are treated

Most complications are treatable, especially when found early during your follow-up visits. Your care team will check your healing progress regularly.

• Infections are usually treated with antibiotic medicines.
• Fluid buildup often goes away on its own as your body absorbs it. If the fluid is uncomfortable, your clinician can drain it easily with a thin needle.
• Lymphedema is managed through physical therapy, special massage techniques, or by wearing a compression sleeve to help move fluid out of the arm.
• Pain is typically managed with medication and improves as the incision heals.

Pain control medicines

Your clinician may recommend different types of medicine to keep you comfortable after a lumpectomy (surgery to remove a breast lump). Most people find that their discomfort is manageable with common over-the-counter options.

• Acetaminophen: This is often used to help with mild to moderate pain.
• NSAIDs: These are non-steroidal anti-inflammatory drugs, such as ibuprofen, which help reduce both pain and swelling.

Your care team will tailor these choices based on your health history and any other medicines you take. In some cases, your clinician may prescribe a stronger pain medicine for a short time. It is important to discuss any history of allergies or sensitivities with your team to ensure the plan is safe for you.

Antibiotics

Antibiotics are medicines used to prevent or treat infections caused by bacteria. To help the surgical site heal properly, your clinician may give you a dose of antibiotics just before the procedure starts.

Some patients might also receive a short course of oral antibiotics to take at home after the surgery. Your care team will decide if this is necessary based on your specific surgery and medical needs. Always let your clinician know if you have had an allergic reaction to an antibiotic in the past, such as a rash or trouble breathing, to help them choose the safest option for your recovery.

Blood thinners and clot prevention

Blood thinners, also called anticoagulants, are medicines that help prevent blood clots from forming in the legs or lungs after surgery. Your clinician may ask you to stop taking certain blood thinners or supplements a few days before your lumpectomy to reduce the risk of bleeding during the procedure.

During and after the procedure, your team might use different methods to keep your blood flowing well. This could include:

• Wearing special compression stockings.
• Using a device that gently squeezes your legs to encourage circulation.
• A temporary prescription for blood-thinning medicine if you are at a higher risk for clots.

Your clinician will carefully balance the use of these medicines with the need to prevent bleeding at the surgery site. Be sure to share a full list of your current medications and any history of blood clots with your surgical team.

Emergency warning signs

Most recovery issues can be managed by calling your doctor, but some situations require immediate help. While rare, heavy bleeding is a risk after breast surgery. You should seek emergency care if you experience bleeding that soaks through your bandage rapidly and does not stop with pressure.

Additionally, because any surgery carries general risks, seek help right away if you have sudden chest pain or trouble breathing.

Call your surgeon or clinic if…

Your care team will give you specific instructions on when to contact them. Generally, you should call your surgeon if you notice signs that your recovery is not going as planned. Watch for these changes:

• Signs of infection: Look for redness, warmth, or tenderness near the incision (cut) that gets worse instead of better. A fever is also a common sign of infection.
• Fluid buildup: You may notice a pocket of fluid collecting under the skin near the surgery site or under your arm.
• New or worsening pain: Call if your pain medicine is not helping or if the pain suddenly gets sharper.
• Arm swelling: Swelling in your arm or hand on the side of the surgery could be a sign of lymphedema.

Expected vs concerning symptoms

It is helpful to know what is normal during healing and what might be a sign of a complication.

Most people have:

• Mild pain and tenderness: It is normal for the breast to feel sore or tender for a few days.
• Temporary swelling: Some swelling and bruising are expected after surgery.
• Firmness: As the wound heals, you may feel hard scar tissue form at the surgical site.
• Changes in sensation: Numbness or a change in feeling near the scar is common.

Call if you have:

• Spreading redness: If the area around your wound becomes bright red or feels hot to the touch, this may indicate an infection.
• Persistent arm swelling: While some breast swelling is normal, swelling in the arm or hand that does not go away should be checked by your provider.

Non-surgical treatments

In some cases, your clinician may suggest treatments that do not involve surgery. These are often called systemic therapies because they work throughout the whole body. Examples include hormone therapy, which blocks the hormones that some breast cancers need to grow, and chemotherapy, which uses medicine to shrink or kill cancer cells.

Another option is targeted therapy. This uses specific drugs to find and attack cancer cells without harming as many healthy cells. While these treatments are very effective, they are often used alongside surgery rather than instead of it to make sure all the cancer is gone.

Watchful waiting

Watchful waiting, also known as active surveillance, means your care team monitors the breast closely without immediate treatment. This approach involves regular check-ups, mammograms (X-rays of the breast), or other imaging tests to see if there are any changes over time.

This path is usually considered if a growth is very small, slow-growing, or if a person has other health concerns that make surgery risky. It allows you to avoid the side effects of surgery unless it becomes necessary later.

When surgery becomes the best option

Surgery often becomes the recommended choice if tests show the cancer is likely to grow or spread. A lumpectomy—removing the tumor and a small amount of healthy tissue around it—is often the best way to physically remove the main source of the cancer from the body.

Your clinician may recommend moving from monitoring to surgery if:

• Imaging shows the tumor is getting larger.
• A biopsy (taking a small tissue sample) shows the cells are becoming more aggressive.
• The goal is to provide the best long-term protection against the cancer returning.

Hospital services that commonly perform this surgery

A lumpectomy, also called breast-conserving surgery, is usually performed in a hospital or an outpatient surgical center. Your care will likely involve several different departments working together. The surgical oncology team focuses on removing the tumor and a small rim of healthy tissue around it while keeping the breast looking as natural as possible.

The radiology department often plays a role by using imaging to help the surgeon find the exact location of the tumor before the operation. After the procedure, the pathology department looks at the removed tissue under a microscope to make sure the edges are clear of cancer cells. Because radiation is often recommended after this surgery to help prevent the cancer from coming back, you may also visit the radiation oncology department for follow-up care.

Patient resources and support services

Many cancer centers provide extra resources to help you through your treatment. Patient navigators are professionals who guide you through the healthcare system, helping you schedule appointments and understand your treatment options. Social workers can offer emotional support and help you find local resources for financial or travel assistance if needed.

Support groups are another helpful resource, allowing you to talk with others who are going through similar treatments. Some hospitals also offer rehabilitative services, such as physical therapy, to help you regain full movement in your arm and shoulder after surgery. Your clinician may also suggest nutritional counseling or wellness programs to help you stay strong during your recovery.

Questions for choosing where to have surgery

When deciding where to have your surgery, it can be helpful to ask about the facility's experience and the types of support they offer. You may want to use this checklist when speaking with your care team:

• Does this hospital have a dedicated breast cancer center or a team that specializes in breast surgery?
• Will a multidisciplinary team (a group of different specialists like surgeons and oncologists) meet to discuss the best plan for my care?
• Are radiation treatments available at this location, or will I need to travel to another facility after my surgery?
• What kind of support services, like counseling, patient navigators, or physical therapy, are available on-site?
• How does the surgical team coordinate with my primary doctor or other specialists for long-term follow-up?

Conditions commonly treated by this procedure

A lumpectomy is often referred to as breast-conserving surgery. This means the surgeon removes the tumor and a small margin of healthy tissue around it, rather than removing the entire breast. Your clinician may recommend this procedure for several different conditions depending on the size and location of the area involved.

The most common conditions treated with this procedure include:

• Early-stage breast cancer: This is when cancer is found in a localized area and has not spread to distant parts of the body.
• Ductal carcinoma in situ (DCIS): This is a non-invasive condition where abnormal cells are found in the lining of a breast milk duct.
• Benign breast tumors: These are non-cancerous growths, such as fibroadenomas, that may need to be removed if they cause discomfort or grow quickly.

Related symptoms people search for

Many people seek medical advice after noticing a change in their breast tissue. While many changes are not related to cancer, your clinician may suggest a lumpectomy if a physical exam or imaging shows a suspicious area. Symptoms that can be associated with these conditions include:

• A new lump or a thick mass in the breast or underarm area.
• A change in the size or shape of the breast that does not go away.
• Skin changes, such as dimpling, redness, or a texture that feels like an orange peel.
• Nipple changes, such as the nipple pulling inward or unusual discharge.

It is important to remember that breast pain is not always a sign of cancer, but any persistent or new symptom should be evaluated. Your clinician may use tests like a mammogram or ultrasound to learn more about these symptoms and determine if a procedure is necessary.

Evidence overview

Breast-conserving surgery, commonly known as a lumpectomy, is a well-established treatment for early-stage breast cancer. Extensive medical research has compared this approach to mastectomy, which involves removing the entire breast. According to the National Cancer Institute, studies show that for eligible patients, having a lumpectomy followed by radiation therapy offers the same long-term survival rates as having a mastectomy.

This evidence supports lumpectomy as a standard option for many people. It allows patients to keep most of their breast tissue while effectively treating the cancer. Doctors rely on data from decades of clinical trials to ensure that choosing breast conservation does not compromise a patient's safety or overall health outcomes.

Safety notes and individualized care

While lumpectomy is considered safe and effective, it is not the right choice for every situation. Your care team will look at several factors to decide if this surgery is the best option for you. These factors often include:

• Tumor size and location: If the tumor is large compared to the size of the breast, or if there are tumors in different parts of the breast (multicentric disease), a mastectomy might be recommended to ensure all cancer is removed.
• Radiation therapy: Lumpectomy is almost always paired with radiation to kill any remaining cancer cells. If a patient cannot have radiation due to other health issues or previous treatments, breast-conserving surgery may not be an option.
• Clear margins: The surgeon must be able to remove the cancer with a rim of healthy tissue around it, known as clear margins. If this cannot be achieved, further surgery may be needed.

Your clinician will discuss specific risks, such as infection, bleeding, or changes in breast shape. They will help create a treatment plan that fits your specific medical needs and ensures the highest standard of care.

Sources used

The medical information in this section is based on guidelines and evidence summaries from the National Cancer Institute (PDQ®).