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Steroid Gyno: Why Steroids Cause It, and Why It Often Stays
Gym culture has a lot of folklore about steroid gyno and how to "manage" it. This page isn't that. It's what medical sources say about why steroids cause gyno, why it often sticks, and what your real options are if it's happened.
Quick answer
Anabolic steroids are a well-known cause of gyno: American Family Physician lists them among drugs with estrogen-like effects and says steroid use often causes gyno that doesn't go away. In one surgeon's series of 964 gyno surgery patients, 11% had used steroids, and they needed revision surgery more often. If you have it, stop and see a doctor; never try to treat it with more drugs bought online.
On this page
Why steroids cause gyno
Gyno happens when estrogen's effect outweighs testosterone's. American Family Physician puts anabolic steroids in the group of agents with estrogenic properties: in the body, they push the balance toward estrogen, either directly or as the body converts some of them.
There's a second hit after a cycle ends. Taking large doses of hormones from outside tells the body to stop making its own testosterone. When the outside supply stops, testosterone can stay low for a while, and estrogen has an even easier time. That's one reason gyno sometimes appears or worsens after a cycle, not during it.
Why it often stays
American Family Physician says plainly that anabolic steroid use often causes irreversible gynecomastia. Part of the reason is the same as any gyno: tissue that's been stimulated for months turns fibrous, and fibrous tissue doesn't shrink back. And part is that many users go through repeated cycles, each one stimulating the tissue again.
The article adds that marijuana, heroin and amphetamines may also contribute to gyno that doesn't go away, which matters because these often go together.
What surgeons see in steroid users
A 2019 study in Annals of Plastic Surgery reviewed 964 patients who had gyno surgery with one surgeon. Eleven percent, 105 men, had a history of anabolic steroid use. Compared with the others, they had less fat in their chests, and they needed revision surgery more often: 3.8% versus 1.1%. The authors concluded that steroid users need careful gland removal to reduce the chance of the gyno coming back, and extra attention to bleeding during surgery.
Steroid gyno vs other gyno
| What | Steroid users | Other men |
|---|---|---|
| Will it go away alone? | Often not, says AFP | Depends on age and cause |
| Chest fat | Less, in surgery patients | More |
| Typical surgery | Careful gland removal | Gland removal and liposuction |
| Revision surgery | 3.8% in one large series | 1.1% in the same series |
| Can it come back? | Yes, with more steroid use | Less likely once the cause is gone |
Sources: Dickson, American Family Physician, 2012; Vojvodic et al., Annals of Plastic Surgery, 2019.
If you've got gyno from steroids
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Stop, with a doctor involved
Coming off can leave your own testosterone low for a while, which is miserable and can worsen gyno. A doctor can check your hormones and help you through it.
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Get checked
Tell the doctor the truth about what you took and when. It changes which tests they order and what they look for. Hormone bloodwork, and liver and other checks, are standard. See gynecomastia tests.
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Don't self-treat with online drugs
"Research chemicals" and drugs bought online have unknown contents and doses. Some medicines have been studied for gyno, but whether any of them suit you is a doctor's decision.
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Give it time, then decide
If it's new, some may settle once you've stopped and your hormones recover. If it's still there after a year, it's likely fibrous and surgery is the way to remove it, ideally once you're sure you won't use steroids again.
Questions people ask
Does steroid gyno go away?
Often not. American Family Physician says anabolic steroid use often causes gyno that doesn't go away. New, soft gyno may settle somewhat after stopping, but tissue that's been there a long time usually stays.
Why does gyno happen after a steroid cycle?
Steroids act like estrogen in the body, and coming off them can leave your own testosterone low for a while, tipping the balance further toward estrogen.
Can surgery fix steroid gyno?
Yes. Surgeons remove the gland, carefully. In one large series, steroid users needed revision surgery more often than other patients, which is why surgeons stress thorough removal, and why it can come back with further steroid use.
Can steroid gyno come back after surgery?
It can, if steroid use continues. Removed tissue doesn't regrow, but any remaining tissue can be stimulated again. That's a strong reason to stop for good before surgery; talk it through with your surgeon.
Sources
- Dickson G. Gynecomastia. American Family Physician, 2012;85(7):716-722
- Vojvodic M, Xu F, Cai R, Roy M, Fielding J. Anabolic-androgenic steroid use among gynecomastia patients: prevalence and relevance to surgical management. Annals of Plastic Surgery, 2019
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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