What works, and when
| Option | Who it suits | What to expect |
|---|---|---|
| Waiting | Puberty, and recent tissue with a clear cause | Most teenage cases settle in six months to two years |
| Treating the cause | A medicine, steroids, alcohol, a thyroid or hormone problem | Recent tissue often goes down within months |
| Weight loss | Chest fat, and the fat around a gland | Shrinks the fat; the gland stays |
| Tamoxifen (prescription) | Recent, painful tissue in adults, under a doctor | Can ease pain and shrink new tissue; little effect on old tissue |
| Compression vests | Anyone, for clothes and sport | Hides it; changes nothing underneath |
| Non-surgical fat treatments | Chest fat only | Some fat reduction; no effect on gland |
| Surgery | Long-standing gland in a steady-weight adult | Removes it |
Waiting and treating the cause
For new gynaecomastia, time is a real treatment. A doctor's usual advice for an adult with a normal examination and tissue under a year old is to watch for a few months. If a medicine is to blame, the prescriber may switch it. If steroids, alcohol or cannabis are involved, stopping is the treatment. If a thyroid or hormone problem shows up on bloods, treating it often brings the tissue down.
Medicines a doctor may prescribe
Tamoxifen, a prescription-only medicine, is the one most used. In one breast clinic, three months of a low daily dose relieved pain and swelling in 10 of 13 men with recent gynaecomastia. Trials in long-standing or teenage cases show little benefit. It has side effects, so it's prescribed and followed by a doctor, usually a specialist, and it isn't a licensed use. Other medicines have been tried with mixed results.
Non-surgical fat treatments
Clinics in Ireland sell fat-freezing, ultrasound and radiofrequency devices, and fat-dissolving injections for the chest, typically €450 to €1,000 a course. They work, modestly, on fat. They can't remove gland tissue, because gland isn't fat. If the pinch test finds a firm disc, these won't shift it, whatever the advert says.
Creams, pills and "gyno" supplements
None is proven to shrink gynaecomastia. Some products sold online contain real hormones or drugs not on the label. Save the money, and talk to a GP or pharmacist instead.
When non-surgical treatment has run its course
If the tissue has been there more than a year, your weight is steady, a GP has checked for a cause and it still bothers you, surgery is the treatment that removes it. Our guide to when surgery is the answer explains who it suits; the operation and full costs are on gynecomastia.ie.
Questions people ask
Can gynaecomastia go away without surgery?
Yes, often, when it's recent and the cause is dealt with. Long-standing, fibrous tissue doesn't.
Does a compression vest shrink it?
No. It flattens the look under clothes, which many men find useful, but it doesn't change the tissue.
Is tamoxifen safe to take for gyno?
Only under a doctor. It's prescription-only for a reason: it has side effects that need watching.
Does gynecomastia treatment cost much without surgery?
Waiting and treating the cause cost little beyond a GP visit. Non-surgical fat treatments cost €450 to €1,000 a course and only treat fat.