Gynecomastia and finasteride

I had a surgery some years ago for gynecomastia and am now considering a hair transplant.  The doctor tells me that if I take Finasteride, I can prevent shock hair loss. Will this cause my gynecomastia to return? 

If you had Gynecomastia (breast lumps or breast enlargement in men) from a non-Finasteride related cause, then taking the drug should not produce a recurrence of the problem for you even at traditional doses and your risk for developing it is about the same as anyone who never hair gynecomastia with finasteride.