First, the reassuring part
Post-surgical galactorrhoea usually follows a benign, self-limiting course. Many surgeons describe episodes appearing during or after augmentation with implants that resolve on their own within several weeks, with no treatment at all.
In an in-house series of 40 cases, in women aged 18 to 40, both without and with previous children, that was the usual behaviour. If this is happening to you, the probability that it is something serious is low.
That said, "benign" does not mean "ignore it". Depending on symptom intensity, management may be medical or, uncommonly, surgical — with drainage and, exceptionally, implant removal. The right move is to be assessed rather than wait and see.
Why it happens
The exact cause remains unknown, and is most likely multifactorial. In the series of 40 cases, the factor appearing most often among affected patients was having had children; no association was found with any other factor.
The best-founded explanation is a reflex mechanism: mechanical stimulation of the breast, surgical trauma and thoracic surgery itself trigger nerve irritation that travels up the thoracic nerves and alters release of the factors regulating prolactin, the hormone responsible for milk production.
Obstruction of the lactiferous ducts is also thought to contribute to the formation of galactoceles — collections of milk — in previously operated patients. Notably, the association with galactorrhoea is more frequent after breast reduction than after augmentation, because there milk escaping through the wound can interfere with healing.
What must be ruled out before blaming the surgery
This is the part no patient should skip, and the reason "wait and see if it stops" is poor advice.
There are many other causes of galactorrhoea, some requiring treatment of their own and bearing no relation to the implant. Before assuming the surgery is responsible, rule out:
- Medications — neuroleptics, antidepressants, some antihypertensives, opiates and antiemetics such as metoclopramide. One of the most frequent causes and among the easiest to overlook.
- Endocrine disorders — primary hypothyroidism, Addison’s disease and Cushing’s syndrome.
- Prolactinoma — a prolactin-producing pituitary tumour. It is the most frequent tumoural cause and accounts for around 25% of galactorrhoea cases generally. It is benign and treatable, but it has to be found.
- Local causes — repeated mechanical stimulation, chest trauma, mastitis, herpes zoster.
- Systemic disease — chronic kidney failure, cirrhosis, polycystic ovary syndrome, hyperthyroidism.
- Idiopathic — that is, no identifiable cause. It is a diagnosis of exclusion and may account for up to 50% of cases: it is reached only after the above has been ruled out, never before.
What to do if it is happening to you
Be assessed by your surgeon. Evaluation normally includes physical examination, a blood prolactin measurement, a thyroid panel and breast imaging.
That distinguishes the three situations managed differently: self-limiting galactorrhoea from the surgical stimulus itself, a galactocele requiring drainage, and a hormonal or drug-related cause needing entirely different treatment that surgery will not resolve.
Bring a list of every medication you take to the appointment, including those that seem irrelevant. It shortens the diagnosis.
Two things NOT to do
These two appear here because they are what most patients do by instinct, and both make the picture worse.
- Do not manipulate the breast to check whether milk is still coming out. Repeated mechanical stimulation is precisely one of the factors that perpetuates galactorrhoea. Checking several times a day keeps active the very reflex you want to switch off.
- Do not stop any medication on your own. Even if you suspect a drug is the cause, stopping it without medical direction can carry consequences greater than the symptom you are trying to resolve. Take it to the consultation and let it be decided there.
What it means for your aesthetic result
In most cases, nothing permanent. Self-limiting galactorrhoea resolves without consequences for the augmentation result.
When a galactocele forms and needs drainage, management is more active but the problem remains a solvable one. Implant removal is exceptional, not the norm, and is mentioned here for honesty rather than because it is the expected outcome.
Results may vary and every case requires individual assessment. If you are considering breast surgery and want to understand which questions to ask before deciding, they are set out in how to choose a plastic surgeon in Puebla.
Frequently asked questions
Is milk discharge after breast augmentation normal?
It is not usual, but it happens. It is an uncommon late complication and is very poorly documented in the medical literature, which is why many patients find no information when they search for it. In most cases it follows a benign course and resolves spontaneously within several weeks, though it should always be assessed.
Does galactorrhoea after breast surgery go away on its own?
Usually yes. Post-surgical galactorrhoea tends to be self-limiting and to resolve spontaneously without treatment. That does not mean it should be ignored: causes unrelated to the surgery, such as medications or hormonal disorders, need treatment of their own and are only identified through assessment.
Will I need my implants removed?
It is exceptional. Depending on symptom intensity, management may be medical or surgical with drainage, and implant removal is reserved for very uncommon cases. Most presentations resolve without any intervention on the implant.
Which tests are done for post-surgical galactorrhoea?
Evaluation normally includes physical examination, a blood prolactin measurement, a thyroid panel and breast imaging. That distinguishes self-limiting galactorrhoea from the surgical stimulus, a galactocele requiring drainage, and a hormonal or drug-related cause needing different treatment.
Could it be something serious?
Post-surgical galactorrhoea itself is usually benign. What must be ruled out are other causes that present identically: drugs such as antidepressants, neuroleptics or metoclopramide; hypothyroidism; and prolactinoma, a benign pituitary tumour accounting for around 25 per cent of galactorrhoea cases generally. All are treatable, but they have to be identified.
Should I check whether milk is still coming out?
No. Repeated mechanical stimulation is one of the factors that perpetuates galactorrhoea, so checking several times a day keeps active the very reflex you want to switch off. Nor should you stop any medication on your own: bring them to the consultation and let the decision be made there.
Every case is different. Get your questions answered in a personal consultation.
Book a consultation on WhatsAppEvery figure published on this site is approximate and is not a quote. Any procedure or treatment first requires a private assessment consultation with Dr. Arístides Arellano —$800 MXN, charged separately— and it is at that consultation that the definitive cost of your case is determined.
Educational content; it does not replace a medical consultation. Results may vary from person to person.