Understand it
Gynecomastia Grades: Grade 1 to 4 Explained
Surgeons and insurers sort gyno into grades, from a small button under the nipple to a chest with loose skin. Your grade matters more than you'd think: it shapes what surgery you'd need, whether insurance might pay, and how long recovery takes.
Quick answer
Most surgeons and insurers use the American Society of Plastic Surgeons' four grades. Grade 1 is a small button of tissue around the areola. Grade 2 spreads past the areola and blends into the chest. Grade 3 is similar but with a distinct edge and some extra skin. Grade 4 is a large chest with loose skin that looks like a breast. Insurers generally only consider grades 2 to 4.
On this page
Why grades exist
A grade gives everyone a shared language. A surgeon uses it to plan the operation, an insurer uses it to decide what it might pay for, and you can use it to know what you're dealing with. Three systems are common, and they overlap a lot.
The ASPS grades
| Grade | What it looks like | What it usually means |
|---|---|---|
| Grade 1 | Small enlargement, a localized button of tissue around the areola | Puffy nipples; the smallest surgery |
| Grade 2 | Moderate enlargement past the edges of the areola, blending into the chest | Gland removal, often with liposuction |
| Grade 3 | Moderate enlargement past the areola with a distinct edge and extra skin | Skin may need tightening |
| Grade 4 | Marked enlargement with extra skin; the chest looks like a breast | Skin removal, longer scars |
Descriptions from the ASPS practice parameter. "What it usually means" is a general guide, not a surgical plan.
The Simon grades
Older but still widely quoted, the Simon system from 1973 splits the middle grade in two, depending on whether there's extra skin. The Seminars in Plastic Surgery review describes it like this:
- Grade I: small enlargement, no extra skin
- Grade IIa: moderate enlargement, no extra skin
- Grade IIb: moderate enlargement with a little extra skin
- Grade III: marked enlargement with extra skin, like a sagging female breast
The Rohrich grades
In 2003, Rohrich and colleagues proposed grades based on the weight of tissue and how much the chest sags:
- Grade I: minimal growth, under 250 grams, no sag
- Grade II: moderate growth, 250 to 500 grams, no sag
- Grade III: severe growth, over 500 grams, with mild sag
- Grade IV: severe growth with moderate to marked sag
You won't know your tissue weight, but it's useful for understanding why surgeons care so much about skin and sag: they decide whether skin needs cutting away.
Estimating your own grade
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Stand in front of a mirror, shirt off
Arms relaxed at your sides, good light, front and side views.
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Look at where the fullness stops
If it's confined to the area of the areola, that points to grade 1. If it spreads past the areola onto the chest, grade 2 or higher.
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Look for an edge and a fold
A visible edge or crease underneath, where the chest meets the stomach, and skin that hangs over it, suggests grade 3 or 4.
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Then let a surgeon confirm it
Self-grading is a rough guide. Fat and gland can look the same in a mirror; check which you have with gyno vs chest fat.
Grade isn't the same as gland
A grade describes size and shape, not what the tissue is made of. A grade 2 chest can be mostly gland, mostly fat, or a mix, and that changes everything about treatment. Two men with the same grade can need very different operations, or one may need none at all because his is mostly fat that responds to weight loss. So think of your grade as half the picture. The other half is the pinch test in gyno vs chest fat.
Grades can also change. Losing a lot of weight can drop a chest down a grade, or leave loose skin that pushes it up one.
Why your grade matters
Insurance. Cigna, UnitedHealthcare and Blue Shield of California only consider grade 2 or higher, with photos to prove it. Grade 1 is treated as cosmetic. See does insurance cover gynecomastia surgery.
Surgery type. Grade 1 often needs only a small gland removal; grades 3 and 4 often need skin removal, with longer scars. See gynecomastia surgery types.
Risks and recovery. The bigger the grade, the bigger the operation, and the research reflects it: surgeons whose patients were more often grade 3 reported more bleeding and fluid problems, and teens who needed skin taken away had more early complications.
Questions people ask
What are the grades of gynecomastia?
The ASPS scale has four: grade 1 is a small button at the areola, grade 2 spreads past the areola, grade 3 adds a distinct edge and some extra skin, and grade 4 is a large chest with loose skin.
Can grade 1 gynecomastia go away?
If it's new, often yes, especially in teens or once a cause is fixed. If it's been there more than a year, it's likely fibrous and tends to stay, though it's the easiest grade to hide.
Does insurance cover grade 2 gynecomastia?
Sometimes. Insurers that cover gyno surgery usually require grade 2 or higher, plus other criteria such as pain, a medical workup and enough time. Many plans exclude it entirely.
What's the difference between grade 3 and grade 4 gynecomastia?
Both have extra skin. Grade 4 is larger, with more loose skin and a chest that looks like a breast, which usually means more skin removal and longer scars.
Sources
- American Society of Plastic Surgeons. Practice parameter: gynecomastia
- Lemaine V, Cayci C, Simmons PS, Petty P. Gynecomastia in adolescent males. Seminars in Plastic Surgery, 2013
- Holzmer SW, et al. Surgical management of gynecomastia: a comprehensive review of the literature. Plastic and Reconstructive Surgery Global Open, 2020
- Cigna. Coverage Policy 0195, Gynecomastia Surgery
Medical facts last checked against these sources on .
Medical disclaimer. I'm a guy who has lived with gyno, not a doctor. This page explains what published medical sources say, in plain words, so you can have a better conversation with your own doctor. It isn't medical advice, a diagnosis or a treatment plan. Don't start, stop or change any medication without talking to a doctor. If something on your chest is changing fast, hurts, or leaks fluid, get it checked.
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