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Procedure guide · Breast
Accessory Breast RemovalAccessory breast removal takes out extra breast tissue that developed outside the normal breast, most often in the armpit. It causes a visible bulge, and frequently swells and aches with the menstrual cycle, in pregnancy and during breastfeeding. Treatment is liposuction where the tissue is mostly fat, direct excision where it is glandular, or both. Surgery takes 45 to 90 minutes under local anaesthesia with sedation or general anaesthesia.
Accessory breast tissue is breast tissue that developed outside the normal breast, along what is called the milk line, a path that runs from the armpit down the chest and abdomen to the groin. In most people the tissue along that line regresses before birth. In some it persists, most commonly in the armpit, and although it is present from birth it often becomes noticeable only at puberty, during pregnancy or while breastfeeding, when hormones make it enlarge.
What people notice is usually a soft bulge in the armpit, visible in sleeveless clothing and in a bra, sometimes on both sides. It may be glandular tissue, fat, an accessory nipple, or a combination. An accessory nipple frequently goes unrecognised for years and is mistaken for a mole, darkening and enlarging during pregnancy, which is often when the penny drops. The condition is considerably more common than most people realise and is entirely benign in itself.
The most useful thing to establish before any treatment is whether the bulge is fat or gland, because it decides the operation. There is a simple clue that costs nothing: does it change with your menstrual cycle? Glandular accessory breast tissue behaves exactly like breast tissue, becoming fuller, heavier and tender in the days before a period and settling afterwards. During pregnancy it can enlarge dramatically, and in some women it produces milk during breastfeeding, which is distressing when nobody has explained it in advance.
That distinction matters because liposuction, which is appealing for its tiny scars and quick recovery, removes fat and does not remove glandular tissue. A patient whose bulge swells with her cycle who has liposuction will end up with a slightly smaller bulge that still swells and aches every month. This is the commonest reason people are disappointed after accessory breast removal, and it is entirely predictable from the history if anyone asks the right question.
Direct excision removes the gland definitively through an incision placed in a natural crease of the armpit, ending the cyclical swelling permanently. The trade-offs are a visible scar, though armpit scars generally heal well, and a higher chance of fluid collecting afterwards. A combined approach uses liposuction to reduce the fatty component and allow the skin to redrape, with a smaller incision to remove the glandular core, which often gives the best contour with a shorter scar than excision alone.
There is a second reason to prefer excision that is rarely mentioned in cosmetic marketing. Accessory breast tissue is breast tissue, which means it can develop the same conditions as the breast itself: cysts, benign lumps, and rarely cancer. Tissue removed by excision can be sent for examination; tissue destroyed by liposuction cannot. If there is any lump within the tissue, or any recent change, it should be assessed before it is removed for appearance, and asking whether the specimen will go for histology is a reasonable question.
The anatomy of the armpit shapes everything about the recovery. It contains the lymphatic drainage of the whole arm, the nerve supplying sensation to the inner upper arm, and nerves to some of the chest muscles. That is why fluid collects there more readily than almost anywhere else in the body, why a seroma needing drainage is a realistic possibility rather than a rare complication, and why numbness along the inner arm is common after surgery. The numbness affects sensation only, not movement or strength, and recovers over weeks to months in the great majority of patients.
Recovery is straightforward but more restrictive than people expect, because the armpit is involved in almost every arm movement. The first week means a compression garment, limited arm movement and a good deal of awkwardness with dressing, washing hair and driving. Most people are back at a desk within a week. If both sides are done at once, which is usual where both are affected, arrange help for the first few days.
Timing is the last practical point. Have it done when your weight is stable and you are not pregnant, breastfeeding or planning a pregnancy soon, because accessory breast tissue enlarges considerably during pregnancy and lactation. Operating beforehand means removing tissue that is not the tissue you will have later. Some surgeons also prefer to operate in the week after a period, when glandular tissue is least swollen and easiest to assess, and it is reasonable to ask whether they have a preference.
Surgeons look for these points at the consultation.
Accessory breast removal suits adults with extra breast tissue outside the normal breast, most often in the armpit, causing a visible bulge, cyclical swelling, tenderness, chafing or difficulty with clothing, who are in good general health, not pregnant or breastfeeding, and who have had any lump within the tissue properly assessed.
Reasons a good surgeon will ask you to wait or choose something else.
Accessory breast removal is avoided during pregnancy or breastfeeding, when accessory tissue is naturally enlarged and inflamed, where a lump within the tissue has not been investigated, in active skin infection of the armpit, in smokers who will not stop, and in unstable weight where the fatty component is likely to change.
Ask your surgeon which technique they recommend for you and why.
The bulge is reduced through one or two small incisions using liposuction, appropriate where imaging or examination suggests the tissue is mostly fat rather than glandular.
The accessory breast tissue is removed through an incision placed in a natural crease of the armpit, which is the reliable option where the tissue is glandular.
Liposuction reduces the fatty component and allows the skin to redrape, while the glandular core is removed directly through a smaller incision than excision alone would need.
An extra nipple, which can occur anywhere along the milk line from the armpit to the groin, is excised as a small ellipse under local anaesthesia.
Step by step, from arrival to discharge.
Before accessory breast removal the surgeon asks whether the bulge changes with your menstrual cycle and examines it, since glandular tissue and fat need different operations.
Any lump within the tissue is investigated before surgery, because accessory breast tissue can develop the same conditions as the breast itself.
Local anaesthesia with sedation is sufficient for many patients; general anaesthesia is used for larger excisions or where both sides are treated together.
Where fat contributes, liposuction through small access points reduces the bulk and allows the skin to redrape, which shortens the incision needed for the gland.
Glandular tissue is removed through an incision placed in a natural crease of the armpit, with the nerve to the inner arm and the lymphatic vessels identified and protected.
A drain is placed if the cavity is large, the wound is closed in layers, and a compression garment is fitted to limit the fluid collection the armpit is prone to.
Frequencies follow published guidance; your personal risk depends on your health and the surgeon.
Accessory breast removal is a small operation with one anatomical complication: it takes place in the armpit, which contains the lymphatic drainage of the arm, the nerve supplying sensation to the inner upper arm and the nerves to some of the chest muscles. That is why numbness of the inner arm is common, why fluid collects there more readily than almost anywhere else, and why this is not a procedure to have done casually by someone unfamiliar with the region.
The other point is one that gets lost when this is sold as cosmetic contouring. Accessory breast tissue is breast tissue. It responds to hormones, swells in pregnancy and lactation, and it can develop the same conditions as tissue in the breast itself, including cysts, benign lumps and, rarely, cancer. Any lump within it needs proper assessment before it is removed for appearance, and tissue that is excised should be examined rather than discarded. Liposuction alone does not allow that, which is a genuine consideration when choosing the technique.
The armpit swells and bruises for 2 to 3 weeks after accessory breast removal, and a compression garment is usually worn.
The armpit is rich in lymphatics, so fluid collects readily after excision. Drainage with a needle is sometimes needed, and a drain is occasionally left in place.
The nerve supplying sensation to the inner arm runs through the armpit and is easily stretched. Numbness is usually temporary but can persist.
Excision leaves a scar, usually placed in a natural crease. Armpit scars generally heal well but can thicken, particularly in patients prone to keloids.
Where a large accessory breast has been removed, the skin may not retract fully, leaving looseness or a dip that needs refinement.
Glandular tissue left behind after accessory breast removal continues to swell with the menstrual cycle, which is the usual reason liposuction alone disappoints.
The armpit contains the lymphatic drainage of the arm and several nerves, so extensive dissection carries a small risk of persistent swelling or weakness.
Recovery from accessory breast removal is straightforward but more restrictive than patients expect, because the armpit is involved in almost every arm movement. The first week is dominated by a compression garment, limited arm movement and awkwardness rather than by pain, and most people are back at a desk within a week.
Two things are worth planning for. Fluid collects in the armpit readily, so a seroma needing drainage is a realistic possibility and is a nuisance rather than a danger; if you have travelled, establish who would drain it once you are home. And numbness along the inner upper arm is common and disconcerting if unexpected, recovering over weeks to months in the great majority of patients.
Days 1-3
A compression garment or firm dressing is worn over the armpit. Movement of the arm is limited and uncomfortable. Simple painkillers are usually enough.
Days 4-7
Bruising begins to fade and arm movement becomes easier. Any drain is removed and the wound checked. Flying is usually cleared from day 5.
Weeks 2-4
Most swelling resolves and daily activity resumes, including driving. Compression continues as instructed. No heavy lifting or gym work yet.
Weeks 4-6
The shape of the armpit after accessory breast removal becomes apparent as swelling resolves. Full exercise resumes. Scar care with silicone begins once the wound is closed.
Months 3-6
Swelling has fully resolved, the scar is fading and any numbness of the inner arm has usually recovered. The result should be judged at this point.
A successful accessory breast removal gives a flat, normal armpit contour, and for most patients the practical difference is immediate: sleeveless clothing, swimwear and bras fit as they should. Photographs are less useful here than simply putting on the clothes that previously did not work.
Where the tissue was glandular and properly excised, the cyclical swelling and tenderness end permanently, which patients often value more than the change in appearance. Where liposuction alone was used on glandular tissue, the cyclical symptoms continue, which is the predictable disappointment this procedure produces.
The contour takes 4 to 6 weeks to become clear as swelling resolves, and 3 to 6 months to reach its final state. The armpit swells more stubbornly than most areas because of its lymphatic anatomy, so early judgement is unreliable.
Properly excised gland does not regrow, so the result is permanent. The fatty component can partly return with significant weight gain, which is the main reason to be at a stable weight before surgery.
Accessory breast removal is priced by what the operation involves rather than by the name. Liposuction alone through small access points is a short day-case procedure at the lower end; direct excision of glandular tissue takes longer, may need a drain and costs more; a combined approach sits between them.
Treating both armpits in one sitting costs less than two separate procedures, and adding it to other breast or body surgery already planned costs considerably less again, because theatre, anaesthesia and the trip are shared.
Where there are symptoms rather than only appearance, recurrent pain, cyclical swelling, chafing or difficulty with arm movement, some health systems treat removal as a functional procedure and may fund it through a referral pathway. Thresholds differ by country and it is worth investigating rather than assuming.
Why quotes for the same procedure differ, so you can compare packages fairly.
Options to weigh before deciding, surgical and non-surgical.
Appropriate where the bulge is genuinely fat rather than gland. Tiny scars and a quick recovery, and it will not stop cyclical swelling if glandular tissue is present.
The definitive treatment for glandular tissue, and the only option that allows the specimen to be examined. A longer scar in the armpit is the trade.
Accessory breast tissue is benign, and where it causes no symptoms and does not trouble you, there is no medical reason to remove it. Any lump within it still needs assessing.
The tissue enlarges considerably during pregnancy and lactation, so removing it beforehand may mean operating on tissue that will not resemble what you have later.
Ask the same questions at every consultation so you can compare answers.
Accessory breast tissue is breast tissue that developed outside the normal breast, along what is called the milk line, which runs from the armpit down the chest and abdomen to the groin. In most people the tissue along that line disappears before birth; in some it persists, most commonly in the armpit. It is present from birth even though it often becomes noticeable only at puberty, in pregnancy or during breastfeeding, when hormones make it enlarge.
It may be glandular tissue, fat, an extra nipple, or a combination. An accessory nipple is frequently mistaken for a mole for years. The condition is more common than most people realise and is entirely benign in itself.
Because accessory breast tissue is breast tissue and responds to hormones exactly as the breast does. It becomes fuller, heavier and tender in the days before a period, and settles afterwards, in the same cyclical pattern. During pregnancy and breastfeeding it can enlarge dramatically, and in some women it produces milk.
That cyclical pattern is also the most useful diagnostic clue. A bulge in the armpit that changes with the cycle is very likely to be glandular accessory breast tissue rather than fat, which matters because liposuction alone will not resolve it.
Only if the bulge is mostly fat. Liposuction removes fat efficiently and leaves tiny scars, which makes it appealing, but it does not remove glandular tissue. If the swelling changes with your menstrual cycle, the tissue is glandular, and liposuction will reduce the bulk a little while the cyclical swelling and tenderness continue.
That is the commonest reason patients are disappointed after accessory breast removal. Direct excision removes the gland definitively, at the cost of a scar in the armpit, and a combined approach uses liposuction for contour with a smaller incision to remove the glandular core.
The accessory breast removal scar sits in a natural crease of the armpit, where it is hidden by the fold of skin and by the shadow of the arm. Armpit scars generally heal well because the skin is thin and the area is not under much tension, and most are difficult to see once mature.
Liposuction alone leaves only small access points a few millimetres long. Excision leaves a longer scar, the length depending on how much tissue is removed. If you are prone to thick or keloid scars, raise it before surgery, because the armpit is not an uncommon site for them.
Yes, and it is worth asking for explicitly. Accessory breast tissue is real breast tissue and can develop the same conditions as the breast itself, including benign lumps and, rarely, cancer. Tissue removed by excision can be sent for examination; tissue destroyed by liposuction cannot.
This is a genuine consideration when choosing between the techniques, particularly if there is any lump within the tissue or any recent change. A lump in accessory breast tissue should be assessed before it is removed for appearance, not after.
Properly excised glandular tissue does not regrow after accessory breast removal, so the cyclical swelling ends permanently. What can change is the fatty component: if the removal relied on liposuction and you gain significant weight, the remaining fat cells enlarge and the bulge can partly return.
Incomplete removal is the other reason for recurrence, and it is usually the consequence of using liposuction on tissue that was glandular. If the swelling still changes with your cycle after surgery, glandular tissue has been left behind rather than growing back.
Plan 5 days as a minimum after accessory breast removal. The armpit collects fluid readily, so the wait allows a wound check and the removal of any drain, and gives time for an early seroma to declare itself while you are still with the surgical team.
Wear the compression garment for the flight, avoid lifting your bag into an overhead locker, and move your arm gently but regularly. Arrange before you travel who would drain a seroma if one develops after you are home, because it is the commonest thing to need attention.
Accessory breast removal is sometimes funded, where there are symptoms rather than only appearance. Recurrent pain, cyclical swelling, chafing, skin irritation and difficulty with clothing or arm movement are treated as functional problems in a number of health systems and may be funded through a referral pathway.
Removal purely for appearance is generally treated as cosmetic. Thresholds differ in every country. Where there is a lump, assessment is a medical matter regardless of the funding position and should go through your doctor rather than a cosmetic clinic.
Yes, and accessory breast removal on both sides at once is usual where both armpits are affected, which is common. Doing both at the same time means one recovery and one period of restricted arm movement, and allows the surgeon to match the contours.
The trade-off is practical: with both armpits sore and compressed, ordinary tasks such as dressing, washing your hair and driving are awkward for the first week. Arrange help for the first few days if you live alone.
An accessory nipple is an extra nipple along the milk line, most often below the normal breast or in the armpit. It is usually small, often mistaken for a mole, and frequently noticed only when it darkens or enlarges during pregnancy. It may or may not have glandular tissue beneath it.
Removal is a very small procedure under local anaesthesia, excising it as a small ellipse and closing with a fine suture. It leaves a short scar and does not recur. If there is glandular tissue beneath, that is assessed and dealt with separately.
When your weight is stable and you are not pregnant, breastfeeding or planning a pregnancy soon. Accessory breast tissue enlarges considerably during pregnancy and lactation, so operating beforehand means the tissue you have removed is not the tissue you will have later.
Timing within the menstrual cycle matters less, though some surgeons prefer to operate in the week after a period when the tissue is least swollen and easiest to assess. It is reasonable to ask whether they have a preference.
Possibly, temporarily. The nerve supplying sensation to the inner upper arm runs through the armpit and is easily stretched during surgery, so numbness or tingling along the inner arm is common after accessory breast removal. It recovers over weeks to months in the great majority of patients.
A small number are left with a permanently altered patch. It affects sensation only, not movement or strength, and most people who have it stop noticing. It is more likely after extensive excision than after liposuction alone, which is one more factor in choosing the technique.
The most useful clue costs nothing and you can check it yourself over a month: does it change with your menstrual cycle? Glandular accessory breast tissue behaves exactly like breast tissue, becoming fuller, heavier and tender in the days before a period and settling afterwards. Fat does not do that.
Two other pointers help. Accessory breast tissue is usually firmer and more discrete than the soft, diffuse fat pad that many people have at the front of the armpit, and it often has a definable edge. And if it enlarged noticeably during a pregnancy, or was tender while you were breastfeeding, that is close to diagnostic. Ultrasound can confirm it where the examination is unclear.
Accessory breast removal sometimes leaves loose skin, where the bulge was large and had been present for years, because the skin has stretched to accommodate it and does not always retract fully once the tissue is gone. It is more likely after direct excision of a large gland than after liposuction, which leaves the skin less disturbed and allows it to redrape gradually.
In most patients the armpit skin tightens well over 3 to 6 months, helped by the compression garment, because the area is small and the skin there is relatively elastic. Where looseness persists, a small skin excision along the existing scar line corrects it, and that is usually deferred until at least 6 months when the final contour is known.
Accessory breast tissue does run in families in some cases, though most people with it have no known relative who shares it, and it is common enough that a family history is not required to explain it. It arises from tissue along the milk line that normally regresses before birth and occasionally does not.
There is nothing to check for and nothing to do about it in a child. Accessory breast tissue is benign, frequently unnoticed until puberty or pregnancy, and needs no monitoring in itself. The only thing worth knowing as a parent is that a small dark mark along the milk line that everyone has assumed is a mole may be an accessory nipple, which matters only in that it is not a mole and does not need watching as one.
Yes, and it frequently is. Accessory breast removal combines readily with breast surgery, with body contouring and with liposuction elsewhere, because the armpit is a small field and the procedure adds well under an hour to an operation that is already happening.
The practical benefit for anyone travelling is considerable: one anaesthetic, one recovery and one trip rather than two. The one caution is that compression garments for the armpit and for the torso have to work together, so mention it early enough for the team to plan what you will be wearing afterwards.
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