Can Breasts Grow Back After Top Surgery?

No, breasts cannot grow back after top surgery. Once breast tissue has been surgically removed, it does not regenerate, and the flat chest created by FTM top surgery is permanent. What can change is the small amount of tissue that is deliberately left behind, the fat on your chest and the skin over it. Significant weight gain, stopping testosterone, pregnancy and normal ageing can all alter how your chest looks, and some of these changes can look a little like regrowth even though no new breast tissue has formed.

This guide explains what top surgery removes and what it leaves, why the remaining tissue varies between techniques such as double incision top surgery and keyhole, how weight, testosterone and pregnancy affect the chest afterwards, and what can be done if your chest changes.

Can Breasts Grow Back After Top Surgery?

No. The breast is made of three main components: glandular tissue (the milk-producing lobules and the ducts that drain them), fibrous connective tissue that supports it, and fat. Top surgery removes the bulk of all three from the chest. Glandular breast tissue develops at puberty under the influence of oestrogen and does not regenerate once it has been cut away, in the same way that a removed appendix or gallbladder does not grow back.

People who ask “if I get top surgery, will they grow back?” are usually worried that the surgery will undo itself, that coming off testosterone will reverse it, or that a later change in their chest means the breasts have returned. In each case the breasts themselves do not come back, but the chest is still living tissue that responds to weight, hormones and time.

Is Top Surgery Permanent?

Yes. Top surgery is a permanent operation, and for most people the flat chest it creates lasts for life. When further surgery is needed, it is almost always to refine shape or scars, not because breasts have returned.

“Permanent” does not mean “unchanging”, though. Your chest ages like the rest of your body: skin loses elasticity over the decades, fat shifts with weight and hormones, and scars keep maturing for 12 to 18 months. So, does FTM surgery last forever? The removal of breast tissue does; the fine detail of the contour depends on how stable your weight and hormones are.

Can Breast Tissue Grow Back After Top Surgery?

The tissue that has been removed cannot grow back. However, no top surgery technique removes every last cell of breast tissue, and the small amount that remains can still respond to hormones. Surgeons leave a thin layer on purpose:

• To keep the skin alive. If the chest skin is thinned too much, its blood supply suffers and it can break down.
• To protect the nipple. In techniques where the nipple stays attached, a disc or stalk of tissue (a pedicle) is kept underneath it to carry its blood and nerve supply.
• To avoid a hollow or “crater” look. Removing every scrap of tissue under the nipple can leave a sunken area.

A 2021 review in Plastic and Reconstructive Surgery ↗ on the oncological side of gender-affirming mastectomy makes this point clearly: techniques vary significantly in how much breast tissue they leave behind, and techniques around the areola or that keep the nipple on a pedicle leave more retained tissue than others^[1]. The amount left is small, but it is not zero, and it explains most of the changes people notice later.

Does Top Surgery Remove All Breast Tissue?

Top surgery removes the large majority of breast tissue, including the mammary glands, but the exact amount depends on the technique, which your surgeon chooses based on your chest size, skin elasticity, droop and nipple position, as well as your priorities. Our guide to FTM top surgery options explains each approach in detail.

Double incision with free nipple grafts

Breast tissue and excess skin are removed through two horizontal incisions, and the nipples are resized and replaced as grafts. No tissue needs to be kept under the nipples, so this technique allows the most complete removal. It suits any chest size, including larger chests with significant droop.

Nipple-sparing double incision and inverted T

Nipple-sparing double incision top surgery uses similar horizontal scars, but the nipple and areola stay attached to a pedicle of tissue rather than being grafted. For larger chests, an inverted T (anchor) pattern can sometimes do the same. The pedicle protects the nipple’s blood supply and sensation, but leaves more tissue under the nipple than free grafts.

Keyhole top surgery

Keyhole top surgery removes breast tissue through a small incision along the lower edge of the areola, often with the help of liposuction. No skin is removed, so it suits only small, firm chests. The nipple is never detached and a little tissue is left beneath it to protect its blood supply. Contrary to a common myth, keyhole gives the best chance of keeping nipple sensation, as the nipple keeps much of its nerve supply.

Periareolar top surgery

Periareolar top surgery is a different operation from keyhole. A ring of skin is removed around the areola, tightening the chest skin and reducing the areola. It suits small to moderate chests with good elasticity. The nipple stays attached on a pedicle, so a little more tissue is kept under it than with free grafts.

Top surgery without nipples

Some people choose no nipples, for a smooth, flat chest, so no tissue needs to be kept for them. Our non-binary top surgery page covers this and other flexible options.

No technique “grows back”. The differences simply change how much residual tissue there is to respond to later weight or hormone changes.

What Happens If You Gain Weight After Top Surgery?

If you gain a significant amount of weight after top surgery, some of that fat is likely to be stored on your chest, which may look fuller or softer. This is fat, not returning breast tissue: fat cells enlarge across the body when you gain weight, and the chest is a common place for them to do so, just as in cisgender men. Fat feels soft and spread out, whereas glandular tissue feels firmer and sits behind the nipple.

A few kilograms makes little visible difference. Larger gains, or repeated cycles of gain and loss, are more likely to alter your contour and can stretch the chest skin. Surgeons therefore advise being at a weight you can comfortably maintain before top surgery rather than planning to lose a lot afterwards. Our article on losing weight before cosmetic surgery has practical advice if you are working towards a stable weight.

Can Your Breasts Grow Back If You Stop Testosterone?

No. Stopping testosterone does not make breasts grow back after top surgery. It can, however, change the shape of your chest in two ways:

• Fat redistribution. If you still have ovaries, your oestrogen levels will rise again when you stop testosterone. Over months, this tends to shift fat back towards a more typically feminine pattern, including the hips and, to a degree, the chest.
• Residual tissue response. Any breast tissue left after surgery is sensitive to oestrogen and may enlarge slightly. This is usually a modest change, not a return to your pre-surgery chest size, as the bulk of the tissue is gone.

People pause testosterone for many reasons, including health or trying for a pregnancy, and not everyone who has top surgery takes it at all. If you are thinking about stopping, it helps to know that some softening of the chest is possible.

Does Testosterone Affect Breast Tissue After Top Surgery?

Testosterone does not cause breast regrowth. If anything, it tends to shrink glandular breast tissue. A 2020 study in Modern Pathology ↗ that examined 447 breast specimens removed during gender-affirming chest surgery found that the longer people had been on testosterone, the more the milk-producing lobules had shrunk (lobular atrophy)^[2]. A later analysis from the same group found that people using testosterone had around 28% less breast epithelium (the cells that line the ducts and lobules) than those who were not, although this effect was weaker in people who were overweight^[3].

One caveat: the body converts some testosterone into oestrogen, partly in fat tissue, so very high doses or a high proportion of body fat can mean more oestrogen and occasional tenderness behind the nipples. Keep your dose within the range your prescriber recommends.

Can Breasts Grow Back After Top Surgery During Pregnancy?

Pregnancy will not regrow your breasts, but it is the situation in which residual breast tissue is most likely to change. During pregnancy, high levels of oestrogen, progesterone and prolactin stimulate any remaining glandular tissue, which can swell and become tender. Some people who become pregnant after top surgery also find that small amounts of milk are produced from the remaining tissue after birth, particularly where the nipple was kept attached.

How much change happens is hard to predict. In a 2016 qualitative study of transmasculine parents ↗, 9 of the 22 participants had had chest masculinisation surgery before conceiving, and the authors highlighted that clinicians need to understand chest changes and lactation after top surgery, including the question of when to restart testosterone^[4]. If you may want to carry a pregnancy in future, mention it at your consultation before choosing a technique.

Why Does My Chest Look Puffy After Top Surgery?

Several things can look like regrowth, particularly in the first year:

• Swelling. Subtle swelling can persist for six months or longer, so the chest often looks puffier early on than it will in the end. Our FTM top surgery recovery guide explains how this settles week by week.
• Seroma. Fluid can collect under the skin, causing a soft swelling that is usually drained in clinic.
• Firm lumps or ridges. Scar tissue and small areas of hardened fat (fat necrosis) can feel lumpy for months before softening.
• Puffy nipples. With nipple-sparing techniques, a slightly domed areola can be caused by the tissue kept underneath it.
• Dog ears and side fullness. Small folds at the ends of double incision scars, or fullness towards the armpit, are contour issues rather than breast tissue.
• Pectoral muscle. Building chest muscle once you return to the gym changes the chest’s shape, and most people welcome it.

The final shape is usually judged at 6 to 12 months, so surgeons generally wait until then before considering revision. Your surgeon reviews you at six weeks and assesses you again at three months, which are good times to raise any concern.

Can You Have Revision Surgery After Top Surgery?

Yes. If residual tissue, fat or a contour irregularity bothers you once your chest has settled, revision can usually improve it. Options include:

• Liposuction to reduce fatty fullness on the chest or at the sides.
• Direct removal of residual tissue, usually through the existing scars, for example to flatten a puffy area under the nipple.
• Dog-ear correction to remove small folds of skin and fat at the ends of the scars.
• Scar revision for scars that have stretched or thickened.

Your surgeon will advise on the type of anaesthetic for a revision, and recovery is usually quicker than after the original operation. Our guide to chest contouring after top surgery covers liposuction and contour refinement in more detail.

Revision is a normal part of top surgery rather than a sign that something has gone badly wrong. In a 2024 cohort study of 2,030 gender-affirming mastectomies in the Netherlands, published in the International Journal of Transgender Health ↗, one or more surgical corrections were performed after 19.9% of double incision procedures and 31.2% of “donut” (concentric periareolar) procedures over a median follow-up of just over three years^[5]. A separate study found significantly more revision surgery after periareolar than after double incision mastectomy (15.0% compared with 5.2% of breasts)^[6], and a systematic review and meta-analysis found higher complication rates with periareolar techniques overall^[7]. Revision rates have also fallen over time as techniques have been refined: a 12-year review found that later year of surgery was the only factor independently linked to a lower chance of revision^[8]. None of this makes periareolar or keyhole surgery the wrong choice for a small, firm chest, but a small touch-up is worth factoring into your decision.

Can You Still Get Breast Cancer After Top Surgery?

Top surgery greatly reduces the amount of breast tissue on your chest, which lowers the risk of breast cancer, but it does not remove the risk entirely. The small amount of residual tissue can still, rarely, develop cancer. In the 2020 Modern Pathology study, atypical cells or early cancer (ductal carcinoma in situ) were found in 2.5% of the removed specimens, which the authors said supports thinking carefully about screening for residual tissue^[2]. The 2021 review recommends that the tissue removed at top surgery is routinely sent for analysis and that people practise chest awareness afterwards, as clinical examination is the most common way cancer in residual tissue is detected^[1].

Chest awareness means knowing how your chest normally looks and feels and seeing your GP promptly about any new lump, nipple discharge or skin change. If you have a strong family history of breast or ovarian cancer, or a known gene variant such as BRCA, tell your surgeon at consultation. Read more in our guide: does FTM top surgery eliminate the risk of breast cancer?

How Can You Keep Your Top Surgery Results Long Term?

• Reach a stable weight before surgery and try to keep it reasonably steady afterwards.
• Wear your compression binder as advised, usually for six weeks.
• Return to exercise gradually, with strenuous exercise and heavy lifting from about six weeks.
• Stay off nicotine for four weeks before and four weeks after surgery.
• Protect your scars from the sun for at least a year while they mature.
• Talk to your prescriber before stopping or changing testosterone.

Frequently Asked Questions

FTM Top Surgery in London

FTM top surgery at Centre for Surgery is performed by GMC-registered surgeons at our CQC-regulated Baker Street hospital, rated Good overall by the CQC, for trans men and non-binary adults aged 18 and over. We offer double incision with free nipple grafts, nipple-sparing double incision, inverted T, keyhole and periareolar top surgery, as well as top surgery without nipples, and your surgeon will explain how much tissue each technique leaves and which suits your chest and your plans. No diagnosis, GP referral or WPATH letter is needed, and the consultant who assesses you is the consultant who performs your surgery. Your initial consultation is £100, redeemable against the cost of surgery if you go ahead; our FTM top surgery cost guide explains what the price includes.

Phone: 020 7993 4849 | Address: 95–97 Baker Street, Marylebone, London W1U 6RN
Contact us to schedule a consultation

References

1. Salibian AA, Axelrod DM, Smith JA, et al. Oncologic considerations for safe gender-affirming mastectomy: preoperative imaging, pathologic evaluation, counseling, and long-term screening. Plastic and Reconstructive Surgery 2021;147(2):213e–221e. doi:10.1097/PRS.0000000000007589 ↗
2. Baker GM, Guzman-Arocho YD, Bret-Mounet VC, et al. Testosterone therapy and breast histopathological features in transgender individuals. Modern Pathology 2020;34(1):85–94. doi:10.1038/s41379-020-00675-9 ↗
3. Heng YJ, Baker GM, Fein-Zachary VJ, et al. Effect of testosterone therapy on breast tissue composition and mammographic breast density in trans masculine individuals. Breast Cancer Research 2024;26(1):109. doi:10.1186/s13058-024-01867-w ↗
4. MacDonald T, Noel-Weiss J, West D, et al. Transmasculine individuals’ experiences with lactation, chestfeeding, and gender identity: a qualitative study. BMC Pregnancy and Childbirth 2016;16:106. doi:10.1186/s12884-016-0907-y ↗
5. van der Sluis WB, Elfering L, Roijer P, et al. Gender-affirming mastectomy in transmasculine individuals in The Netherlands: a large cohort study on outcomes and trends. International Journal of Transgender Health 2024;26(3):630–639. doi:10.1080/26895269.2024.2303465 ↗
6. Edalatpour A, Seitz AJ, Warden AM, et al. Outcomes of enhanced recovery protocols and tranexamic acid on double-incision versus periareolar gender-affirming mastectomy: a retrospective study of postoperative outcomes. Journal of Plastic, Reconstructive and Aesthetic Surgery 2023;88:360–368. doi:10.1016/j.bjps.2023.11.027 ↗
7. Zhu J, Wang E, Liu S, et al. Impact of surgical technique on outcome measures in chest masculinization: a systematic review and meta-analysis. Journal of Plastic, Reconstructive and Aesthetic Surgery 2023;87:109–116. doi:10.1016/j.bjps.2023.09.002 ↗
8. Ederer IA, Caecilia S, Raubal F, et al. Age and surgical outcomes in gender-affirming mastectomy: a 12-year institutional review. Plastic and Reconstructive Surgery Global Open 2026;14(8):e7978. doi:10.1097/GOX.0000000000007978 ↗

Related Articles

• Can You Still Get Breast Cancer After Top Surgery?
• Can Top Surgery Be Reversed?
• What Are My Options for FTM Top Surgery?
• Nipple Sensation After Top Surgery: Will You Still Feel Your Nipples?