I’m 26 years old now and I’ve had gynecomastia for as long as I can remember. It’s not something I’ve liked but I’ve gotten used to it, tho I do plan on having it corrected surgically in the future. I’ve recently noticed hair thinning/shedding and am curious if taking 1mg propecia could make my pre-existing gynecomastia worse.
You should treat your gynecomastia problem with surgery if that is what has been recommended by your doctors. Taking Propecia may not make the situation worse, so you can take it and see if it makes it worse. If it does make it worse, then stop it. The doctor who prescribes the Propecia should be able to monitor this with you.