Actually, yes! It's pretty common for women to have extra fat under one armpit!
April 13, 2025
Yes, and it’s more common than you think! It’s called accessory breast or axillary breast, and basically it’s breast tissue that builds up in other parts of your body, often under your armpit, and with or without a nipple.
The decision to have any cosmetic procedures for them is obviously a personal one, and depends on how you feel about it and what’s involved in the procedure. However, it’s worth noting that Accessory Breast Removal is a practical and clinically proven solution to remove the unwanted tissue permanently.
Before we look more closely at this, the team at Amaris B. Clinic addresses some key questions around the phenomenon of third breasts.
Read more about accessory breasts:
- Is Accessory Breast Tissue Harmful? All You Need To Know
- Armpit lumps & axillary accessory breasts during pregnancy
- Why Exercising Won't Get Rid Of Accessory Breast
- Singapore’s Complete Guide on Armpit Fat & Accessory Breast
- Accessory breast tissue in pregnant and postpartum mums
- Permanent armpit fat and accessory breast removal
What does a third breast look like?
With third breasts, accessory breasts or any type of polymastia – that is, the presence of supernumerary (“extra”) breasts on the human body – the extra breast tissue can appear in many forms. It can be everything from a third nipple (the most common condition, referred to as polythelia) to a fully-formed and fully-functional breast in some unusual location on the body. It can also look like a breast with a nipple but no areola, a breast with an areola but no nipple, or just a small lump of breast tissue with neither a nipple nor areola.
Eight different grades of the condition
- A complete breast with a nipple, areola and glandular tissue (Grade I)
- Glandular tissue and nipple without areola (Grade II)
- Glandular tissue and areola without a nipple (Grade III)
- The most common grade: glandular tissue (Grade IV)
- Only the nipple and areola without glandular tissue (Grade V)
- The nipple only (Grade VI)
- Only the areola (Grade VII)
- Only hair (Grade VIII)
Am I abnormal if I have three breasts?
It’s not as rare as you might think, according to an article in The American Surgeon [2]. For example, apparently up to six percent of the general population in Japan has accessory breast tissue, although it is commonly misdiagnosed, usually as lipoma, a benign tumour composed of fat cells. In a few cases, supernumerary breasts can be diagnosed with breast cancer.
Women report a much higher rate of polymastia and polythelia than men, but there have been several reported cases of men with accessory breast tissue or an extra nipple. (Mark Wahlberg apparently has one!)
Read about Accessory Breast Removal In Singapore from Amaris B. Clinic's patients:
- Mother of 2, Breast Enhancement With Fat Grafting And Accessory Breasts Removal
- Mummy In Mid 30s Bothered With Accessory Breast & Armpit Fat After Pregnancy
- 29-Year-Old Chinese Woman Frustrated With Armpit & Arm Fat
Is an accessory breast or axillary breast the same thing as armpit fat?
No, it’s different. Armpit fat is common and may be caused by excess weight, genes or hormonal changes. Appearance-wise, it’s that bulge located between your breast and your arm, which is particularly visible when you wear a bra or a well-fitted top. Armpit fat can be effectively removed with liposuction.
Loose skin or a loss of elasticity in skin that further aggravates the appearance of this bulge between the breast and the armpit can also be addressed with a combination of Ultherapy and calcium hydroxylapatite (CaHA) [3].
How do I get rid of my third breast?
According to an American Journal of Roentgenology article, the proven methods of removing armpit fat are with liposuction, and for accessory breasts, with surgical excision [4].
However, liposuction with Dr Ivan Puah’s MDC-Sculpt Lipo technique in the axillary area can permanently remove the excess fat, contour the area smoothly, and naturally retract the skin all in one go. It’s not an easy procedure, though, and it has to be carried out by someone very skilled in this area.
Accessory breast glands, on the other hand, are removed successfully with another form of surgical approach – axillary glands excision. This is because this area doesn’t respond to liposuction or any non-surgical treatment.
Depending on the patient’s condition, they would need to do both Armpit Fat Lipo and Accessory Breast Removal in order to get a flat, smooth underarm.
About Dr Ivan Puah
Dr Puah is the medical director at Amaris B. Clinic and has over 25 years of clinical practice in medicine, including 19 years in surgical body sculpting treatments, laser skin treatments and injectables. On top of being accredited by the Ministry of Health Singapore to perform liposuction, he has also received dedicated training in gynecomastia surgery and various liposuction techniques in the United States, Argentina and Italy.
If you’ve tried a procedure before but it hasn’t had the result you want, you can also book a consultation with Dr Puah to understand whether or not you’re suited to this procedure.
