The short answer
Gynecomastia is glandular tissue: it feels like a firm, rubbery disc with a clear edge, centred directly under the nipple, and it is usually tender when pressed. Chest fat — pseudogynecomastia — is soft, diffuse and has no definable border, spread across the whole chest.
The distinction matters for one practical reason: fat responds to diet and training. Glandular tissue does not.
The pinch test, step by step
This is the manoeuvre every surgeon uses in a first consultation, and you can perform it yourself with reasonable confidence. It won't diagnose you, but it will tell you far more than looking in the mirror.
- Lie on your back and tuck the hand on the side you're examining behind your head. That position stretches the pectoral and separates the gland from the chest wall.
- With the thumb and index finger of your other hand, take the tissue at the outer edge of the areola, fingers wide apart.
- Slowly close your fingers toward the nipple, paying attention to what sits between them.
- Read what you find. If your fingers meet a firm, mobile mass with an edge that resists — something like a thick coin or disc under the nipple — that is gland. If they come together with almost no resistance and you feel only soft, even padding, that is fat.
- Repeat on the other side and compare. True gynecomastia is frequently asymmetric, and that asymmetry is useful information.
One nuance that rarely gets mentioned: in most adult men it isn't one or the other. Gland and fat coexist in varying proportion, and that proportion is precisely what determines which treatment makes sense. That's why a clinical exam is still necessary even when the home test gives you a clear answer.
Gynecomastia vs. pseudogynecomastia: the differences you can feel
| True gynecomastia | Pseudogynecomastia (fat) | |
|---|---|---|
| What it is | Proliferation of glandular breast tissue | Fat deposition, no gland |
| To the touch | Firm, rubbery, defined edge | Soft, even, no edge |
| Location | Concentric to the nipple, disc-shaped | Spread across the whole pectoral |
| Tenderness | Common, especially when recent | Absent |
| Symmetry | Often asymmetric | Usually symmetric |
| With diet & exercise | Doesn't go away; may become more visible | Improves or resolves |
| Treatment | Glandular excision, almost always with liposuction | Weight loss; liposuction if it persists |
Why the gym doesn't fix it
This is the frustration that brings most patients to the consultation. They lost the weight, developed the abdomen, trained chest for years — and the bulge under the nipple is still there. Sometimes more visible than before.
The explanation is simple, and worth understanding before losing another year to it: a calorie deficit mobilizes fat, not gland. Breast glandular tissue is not adipose tissue and does not respond to training or diet. What happens as you lean out is that the fat camouflaging it disappears, leaving the glandular disc exposed against a now-flatter chest. The chest looks better everywhere except the one place that bothers you.
There is a real exception: if the gynecomastia appeared recently — under six months — or developed during adolescence, a window still exists in which it may resolve on its own or respond to medical treatment. After roughly a year the tissue fibroses and that window closes.
The four grades of gynecomastia
Simon's classification is what plastic surgeons use. It isn't a scale of medical severity — it's a technical guide that determines what happens in the operating room and, above all, whether skin will need to be removed alongside tissue.
The practical consequence: grades I and IIa are almost always resolved with liposuction plus glandular excision through a minimal incision at the lower border of the areola, where the scar becomes nearly imperceptible. From IIb onward, skin quality enters the equation — and there the honest conversation includes which scar you're accepting in exchange for which result.
Why it happens
The origin is an imbalance between estrogen and androgen activity on breast tissue. Three life stages produce it entirely physiologically: the newborn period, puberty and older age. In puberty it is so common that most cases resolve on their own, though a minority persists into adult life.
Outside those stages, it's worth looking for a cause before assuming it's idiopathic:
- Medications. Anti-androgens, some antihypertensives, certain psychiatric drugs and — highly relevant in men who train — anabolic steroids.
- Substances. Sustained alcohol use and cannabis appear consistently in the literature.
- Underlying conditions. Liver disease, kidney failure, thyroid disorders, hypogonadism and, less frequently, testicular or adrenal tumours.
- No identifiable cause. In a meaningful share of cases none is found, and that is a legitimate finding rather than a workup done badly.
This has a direct surgical implication: removing the gland without correcting the cause that produced it is a recipe for it coming back. If you're using anabolic steroids, or taking an implicated medication, that conversation comes before a surgery date.
- A hard, fixed, one-sided mass that doesn't move beneath the skin.
- Nipple discharge, particularly if bloody.
- Skin changes: retraction, dimpling, ulceration, or a nipple that pulls inward.
- Rapid growth over weeks, or palpable nodes in the armpit.
Gynecomastia on its own does not increase the risk of male breast cancer — the known exception is Klinefelter syndrome. But male breast cancer exists and can look like gynecomastia early on. With any of these signs, the correct order is investigate first, discuss cosmetic surgery afterward. Never the reverse.
When surgery isn't the answer yet
Even when the diagnosis is gynecomastia and the patient wants it gone, there are four situations in which Dr. Ramos recommends waiting:
- Under six months of evolution. It may still resolve on its own or respond to medical treatment. Operating here is operating too soon.
- An adolescent who hasn't finished developing. Intervening before puberty completes raises the risk of recurrence. The wait is uncomfortable, but it's the right call.
- An active, uncorrected cause. Anabolic steroids in use, an implicated medication, an untreated underlying condition. Cause first.
- Unexamined warning signs. The list above. No exceptions.
Outside those cases — established gynecomastia, over a year old, cause ruled out or corrected, in a healthy man — surgery is the only way to remove glandular tissue, and the results are consistent.
What the surgery involves
Two things happen in the same operation, because each component responds to something different. Liposuction removes the fatty component and redefines the pectoral contour; glandular excision takes out the firm disc through a minimal incision at the lower border of the areola, where the scar hides in the change of skin colour. The gland cannot be aspirated — it has to come out.
Typical recovery is a few days before returning to desk work, a compression vest for four to six weeks, and loaded exercise around week six. International patients plan 10 to 14 days in Bogotá. In Dr. Ramos's practice, gynecomastia is usually planned alongside torso contouring, because chest and abdomen read as a single unit and correcting one without the other leaves the job half done.
Want to know which one you have?
The pinch test points you in the right direction. A clinical exam confirms it, defines the proportion of gland to fat, and rules out what needs ruling out before anyone talks about an operating room.
Book a consultationYou can read the full detail on the procedure, recovery and what drives the cost on the Male Lipo 360 in Colombia page, where gynecomastia correction is covered as part of male contouring. If you're also weighing body contouring more broadly, the high-definition liposuction page explains the difference between reducing volume and revealing structure.
Clinical sources
- Johnson RE, Murad MH. Gynecomastia: pathophysiology, evaluation, and management. Mayo Clinic Proceedings. 2009;84(11):1010–1015.
- Simon BE, Hoffman S, Kahn S. Classification and surgical correction of gynecomastia. Plastic and Reconstructive Surgery, 1973.
- Enlarged male breast tissue (gynecomastia). Cleveland Clinic.
This article is general information and does not replace a medical evaluation. Reviewed by Dr. Daniel Ramos Hernández, plastic surgeon board-certified by the Colombian Society of Plastic Surgery, on September 1, 2026.