Accessory Breast Tissue & Extra Nipple Removal

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Overview

Purpose

Removes accessory breast tissue or extra nipple tissue to improve body contour, reduce discomfort and address persistent underarm or chest fullness.

Recommended for

Individuals with accessory breast tissue or extra nipples causing discomfort, hormonal swelling, underarm fullness or cosmetic concerns.

Surgery time

Approximately 1–2 hours, depending on whether one or both sides are treated, the amount of tissue removed and whether liposuction is performed.

Hospital stay

Usually performed as a day procedure, allowing most patients to return home on the same day.

Recovery

Most patients return to light daily activities within 1–2 weeks. Swelling gradually subsides over the following weeks, with scars maturing and final contours becoming more apparent over the next few months.

Many people assume that persistent fullness near the underarm is simply stubborn fat. However, in some cases, it may actually be accessory breast tissue: a developmental condition that often becomes more noticeable during puberty, pregnancy or hormonal changes.

While harmless in most individuals, accessory breast tissue or extra nipples can affect clothing fit, cause discomfort during hormonal cycles, or make some people feel self-conscious about their appearance.

accessory breast tissue underarm fullness axillary breast Singapore.
Subtle underarm fullness may have a structural cause rather than just fat, especially when it persists despite lifestyle changes.

Accessory breast tissue and extra nipples

Accessory breast tissue (polymastia) refers to the presence of additional breast tissue outside the normal breast area, most commonly along the milk line. This is an embryonic structure that extends from the underarm to the groin during early foetal development.

Extra nipples (polythelia) are additional nipple structures that may also develop along the milk line. They may appear as small, pigmented bumps and can easily be mistaken for moles or skin tags.

Medical illustration showing how embryonic milk lines develop and normally regress, with examples of persistent accessory breast tissue and supernumerary nipples along the chest and underarm.
Embryonic development of the milk lines and the origins of accessory breast tissue and supernumerary nipples.
Polythelia (an extra or supernumerary nipple).

During normal development, most of the milk line regresses before birth, leaving breast tissue only on the chest. When small portions of this tissue persist, accessory breast tissue or extra nipples can develop. These may remain subtle for many years before becoming more noticeable during puberty, pregnancy or other hormonal changes.

In some cases, accessory breast tissue may:

  • Swell or become tender during menstruation or pregnancy
  • Feel similar to normal breast tissue
  • Be mistaken for fat, enlarged lymph nodes or other underarm lumps

Why is accessory breast tissue or extra nipple removal performed?

Accessory breast tissue or extra nipples are often benign and do not always require treatment. However, surgery may be considered when they cause physical discomfort, interfere with daily activities, or affect body contour and confidence. Because glandular breast tissue does not typically respond to weight loss or exercise, surgical removal is often the most effective way to address persistent symptoms or fullness.

Functional reasons

  • Persistent underarm bulge or swelling, particularly during hormonal changes such as menstruation or pregnancy
  • Tenderness, sensitivity or cyclical discomfort
  • Chafing, irritation or friction against clothing
  • Difficulty maintaining hygiene in deeper skin folds (in more prominent cases)

Aesthetic reasons

  • Visible fullness affecting the contour of the underarm or chest
  • Difficulty wearing fitted or sleeveless clothing comfortably
  • Asymmetry between the two sides
  • Presence of an extra nipple that affects the appearance of the skin

What treatment options are available for accessory breast tissue or extra nipples?

The most appropriate treatment depends on the type of tissue involved and the underlying cause of the concern. Some cases are caused primarily by glandular breast tissue, while others involve excess fat, loose skin or an extra nipple.

TREATMENT

HOW IT WORKS

BEST SUITED FOR

Excision of accessory breast tissue

Glandular accessory breast tissue is surgically removed through a carefully placed incision, usually hidden within the natural underarm crease. Because glandular tissue does not respond significantly to weight loss or exercise, surgical excision is often the most effective treatment for long-term improvement.

  • Firm or glandular tissue
  • Hormone-related swelling or tenderness
  • More prominent underarm bulges

Liposuction or RFAL (Radiofrequency Assisted Lipolysis) (for fat-dominant areas)

If the fullness is caused mainly by excess fat rather than glandular breast tissue, liposuction/RFAL may be performed to remove fat through a small cannula and improve the contour of the underarm area.

  • Soft, fatty fullness
  • Mild contour irregularities

Removal of extra nipples (Polythelia)

Extra nipples can be removed through a minor surgical procedure. The additional nipple tissue is carefully excised and the area is closed with fine sutures to leave a small, discreet scar.

  • Isolated extra nipples
  • Cosmetic concerns without underlying accessory breast tissue

What are the benefits of removing accessory breast tissue or extra nipples?

Removing accessory breast tissue or extra nipples addresses the underlying cause of persistent fullness or prominent nipple tissue, helping to improve both comfort and body contour. Depending on the type of tissue removed, patients may experience both functional and aesthetic benefits.

Potential benefits include:

  • A smoother, more defined underarm and chest contour
  • Reduced or resolved hormonally related swelling, tenderness or discomfort
  • Improved clothing fit, particularly in sleeveless or tailored garments
  • A more balanced and proportionate body silhouette
  • Removal of visible or distracting extra nipple tissue
  • Long-lasting results, particularly when glandular accessory breast tissue is excised

Who is suitable for accessory breast tissue or extra nipple removal?

Accessory breast tissue or extra nipple removal may be suitable for individuals who experience physical discomfort, functional limitations or aesthetic concerns related to these conditions. A clinical assessment is important to confirm that the fullness is due to accessory breast tissue rather than excess fat, enlarged lymph nodes or other underlying causes.

You may be suitable for this procedure if you:

  • Have accessory breast tissue in the underarm, chest wall or elsewhere along the milk line
  • Experience swelling, tenderness or discomfort that worsens with hormonal changes, such as menstruation or pregnancy
  • Notice persistent fullness that affects the contour of the underarm or chest
  • Have an extra nipple that causes cosmetic concern
  • Experience difficulty wearing fitted or sleeveless clothing comfortably
  • Prefer a long-term surgical solution after clinical assessment confirms it is appropriate

What to expect during accessory breast tissue or extra nipple removal

Accessory breast tissue or extra nipple removal is carefully planned to address the underlying tissue while preserving a smooth, natural contour. The exact approach depends on the type of tissue involved and your individual anatomy.

Before procedure

Before the procedure, a detailed assessment is performed to determine the underlying cause of the fullness or prominent nipple tissue. This involves evaluating whether the concern is due to glandular breast tissue, fatty tissue, excess skin or a combination of these factors.

Dr Pearlie will also assess the texture, distribution and symmetry of the area, together with your skin quality and overall chest and underarm contour. This helps determine the most appropriate surgical approach and achieve a smooth, natural-looking result.

The procedure is performed in a controlled and methodical sequence, with each step focused on removing the underlying tissue while preserving a smooth, natural contour. It involves:

  • Anaesthesia and preparation – anaesthesia is administered to ensure comfort throughout the procedure. The procedure can be performed under local anaesthesia with/without sedation. For larger areas, general anaesthesia may be preferred. The treatment area is then carefully marked based on pre-procedure planning, guiding both removal and contour refinement.
  • Incision placement – a small, strategically placed incision is made. It is most commonly within the natural crease of the underarm. This allows access to the tissue while keeping any resulting scar as discreet as possible.
  • Tissue identification and removal – our surgeon carefully identifies the accessory breast tissue and separates it from surrounding structures.
    • If glandular tissue is present, it is excised directly, as it cannot be effectively removed with liposuction 
    • Care is taken to remove the tissue evenly to avoid irregularities 
  • Contour refinement (if required) – if there is a fatty component, liposuction may be performed using a fine cannula. This helps smooth the surrounding area and ensures a more natural transition between the underarm and chest.
  • Symmetry check and closure – once the desired contour is achieved, both sides are assessed for balance and proportion. The incision is then closed in layers to support proper healing and minimise visible scarring.
  • Dressing and support – dressings are applied and, in most cases, a compression garment will be recommended and provided to help reduce swelling and support the healing contour.

Following the procedure, you will be monitored in the recovery area until you are comfortable and medically stable. In most cases, accessory breast tissue or extra nipple removal is performed as a day procedure, allowing you to return home on the same day.

Before discharge, you will receive instructions on wound care, activity restrictions and prescribed medications. Dressings will be applied to the treated area and, where appropriate, a compression garment may be recommended to reduce swelling and support healing.

A follow-up appointment will be arranged to assess your recovery, monitor wound healing and review your surgical outcome. Additional visits may be recommended depending on the extent of the procedure and your individual progress.

axillary breast tissue removal Singapore.
Careful planning and technique aim to remove tissue while preserving a smooth, natural transition between the chest and underarm.

Recovery after accessory breast tissue or extra nipple removal

Recovery varies depending on the amount of tissue removed and whether the procedure involves glandular tissue, liposuction, extra nipple excision or a combination of techniques. While most patients recover steadily, the treated area continues to settle over the weeks that follow.

recovery timeline after accessory breast tissue removal and extra nipple surgery Singapore post-operative healing care.
Recovery after accessory breast tissue or extra nipple removal is a gradual process focused on wound healing, comfort and progressive contour refinement.

Initial recovery (First week)

  • Mild soreness, swelling and bruising around the treated area are expected
  • Dressings remain in place to protect the incision sites
  • A compression garment may be recommended to support the contour and minimise swelling
  • Gentle arm movements are encouraged, although strenuous upper-body activity should be avoided

Early healing (Week 2 to 4)

  • Swelling and bruising gradually improve
  • Most patients can return to work and normal daily routines, depending on the nature of their job
  • The treated area begins to feel more comfortable as healing progresses
  • Follow-up appointments continue to monitor wound healing and scar development

Continued recovery (After 1 month)

  • Residual swelling continues to resolve
  • The contour becomes progressively smoother as the tissues settle
  • Incision scars gradually mature and become less noticeable over time
  • Higher-intensity exercise and unrestricted activities can usually be resumed once cleared by your plastic surgeon

How to tell if you have accessory breast tissue

axillary breast vs fat underarm lump difference Singapore.
Not all underarm bulges are the same; as such, understanding the difference is key to choosing the right treatment.

Not all underarm fullness is caused by accessory breast tissue. In some cases, the fullness may be due to excess fat, enlarged lymph nodes or skin laxity. Because these conditions can appear similar, a clinical assessment is important to determine the underlying cause.

You may have accessory breast tissue if the area:

  • Feels firmer than surrounding fatty tissue
  • Becomes more noticeable or tender during hormonal changes, such as menstruation, pregnancy or breastfeeding
  • Appears as a persistent underarm bulge that does not improve despite weight loss
  • Is present on one or both sides of the body
  • Feels similar in texture to normal breast tissue

Although these features may suggest accessory breast tissue, they are not enough to confirm the diagnosis. A proper evaluation helps distinguish accessory breast tissue from fat, enlarged lymph nodes and other causes of underarm fullness, ensuring that the most appropriate treatment can be recommended.

Accessory breast tissue vs Armpit fat vs Skin laxity

Not all underarm fullness is caused by the same underlying issue. Differentiating between these conditions is key, as each requires a different treatment approach.

FEATURE

ACCESSORY BREAST TISSUE

ARMPIT FAT

SKIN LAXITY

Tissue type

Glandular (breast tissue)

Fat

Loose skin

Texture

Firmer, may feel nodular

Soft, compressible

Thin, loose or crepey

Hormonal changes

May swell or become tender during cycles

No significant change

No change

Response to weight loss

Minimal

Reduces with weight loss

May worsen (looser skin)

Common location

Along the milk line (often underarm)

Generalised underarm area

Underarm fold or arm-chest junction

Best treatment

Surgical excision ± liposuction/RFAL (Radiofrequency Assisted Lipolysis)

Liposuction/RFAL (Radiofrequency Assisted Lipolysis)

Skin tightening or excision

How much does accessory breast tissue or extra nipple removal cost in Singapore?

The cost of this procedure in Singapore can vary quite a bit, as it depends on the nature and extent of the tissue being addressed. Some cases involve a small, localised removal of extra nipple tissue, while others may require excision of accessory breast tissue in the underarm or chest area, which can involve a more complex surgical approach. The choice of technique, anaesthesia and whether liposuction is combined with excision all play a role in shaping the overall fee.

At Pearl Plastic Surgery, accessory breast tissue or extra nipple removal starts from S$6,000. A more accurate estimate is usually provided after consultation, once the type of tissue, extent of removal and surgical plan have been assessed in detail. This ensures the cost reflects the actual treatment required rather than a standardised package.

Book a personalised consultation

If you have persistent underarm fullness or an extra nipple that causes discomfort or affects your confidence, a consultation is the first step towards understanding the underlying cause.

During your consultation, Dr Pearlie Tan will assess the area to determine whether the concern is due to accessory breast tissue, fatty tissue, excess skin or another condition. Based on your anatomy and goals, she will explain the most appropriate treatment options and what results you can realistically expect.

To learn more about your options, schedule an appointment with us today.

Consultation for accessory breast tissue and extra nipple removal in Singapore.
A personalised consultation helps determine the underlying cause and appropriate treatment.

Frequently Asked Questions

Is accessory breast tissue common in Singapore?

Yes, accessory breast tissue is relatively common and often becomes more noticeable during hormonal changes such as puberty, pregnancy or breastfeeding.

Axillary breast tissue refers to accessory breast tissue located in the underarm area. In Singapore, treatment typically involves surgical removal, sometimes combined with liposuction, or liposuction/RFAL alone  depending on whether the tissue is glandular, fatty or mixed.

No, underarm fullness can be due to fat, glandular tissue or skin laxity. A proper assessment is needed to determine the cause, as treatment differs for each.

Accessory breast tissue is glandular and may fluctuate with hormones, while lymph nodes are part of the immune system. A clinical assessment is important to differentiate between them accurately.

Accessory breast tissue is subject to the same conditions as normal breast tissue, including rare risks of benign or malignant changes. While uncommon, medical evaluation is recommended if there are changes in size, texture or associated discomfort.

Yes, while less commonly discussed, men can also develop accessory breast tissue and may seek removal for contour or comfort reasons.

In many cases, yes. Removal helps create a smoother transition between the underarm and chest, improving overall contour, especially in fitted clothing.

Yes, it is commonly performed as a day surgery, allowing patients to return home on the same day, depending on the extent of the procedure.

The procedure typically takes about 1 to 2 hours, depending on whether one or both sides are treated and whether liposuction is included.

Yes, it may be combined with procedures such as liposuction or breast surgery, depending on your overall goals and anatomical needs.

In most cases, a clinical assessment is sufficient. However, imaging such as ultrasound may be recommended if there is uncertainty about the nature of the tissue or to rule out other conditions.

Most patients return to light activities within 1 to 2 weeks, although full healing continues over several weeks.

Light activities can usually be resumed within 1 to 2 weeks. More strenuous upper-body exercise is typically delayed for a few weeks based on our surgeon’s advice.

Most patients experience mild discomfort rather than pain. This is usually manageable with medication and improves within a few days.

No, true glandular breast tissue does not respond significantly to weight loss. While fat may be reduced, the underlying tissue often remains.

Once glandular tissue is removed, it does not grow back. However, remaining fat in the area can still change with weight fluctuations.

Incisions are typically placed in discreet areas such as the underarm crease. Scars generally fade over time and become less noticeable.

Removal for purely aesthetic reasons is generally not claimable. In selected medical cases, eligibility depends on clinical indication and prevailing MOH guidelines.