Regrowth of chest tissue after surgery a decade ago upon starting finasteride. Will another surgery solve this permanently?

If you have gynecomastia as a side effect of Propecia, you need to see your doctor as soon as possible.  If both men and women in your family have died of breast cancer, you need to take this seriously.  See a doctor today.

Please see a cosmetic surgeon that specializes in male breasts.  I find that most of my finesteride patients are not glandular growth but more fat and ultrasonic or laser liposuction does very well to shape the chest. I am not concerned of patients with a history of breast cancer and using finesteride.  For your hair, add in progesterone and PRP injections, along with viviscal pills for the best results with your finesteride and rogaine. Best, Dr. Emer.

Increase in breast tissue in men is known as "gynecomastia." This is an uncommon albeit well known side effect of finasteride (Propecia and generics). Men who experience gynecomastia from finasteride and then stop the drug can sometimes (although not always) experience resolution of the issue. Sometimes surgery is required to remove the enlarged breast tissue. Your situation and the information presented is unique and I would encourage you to get expert opinion from cancer specialists. I can't comment specifically on your situation as I don't have all the information about your details. Although there is no solid evidence linking finasteride to breast cancer in men,  I would like to make a few general comments about gynecomastia and breast cancer.  This is most relevant to your question. We now know that there are several important risk factors for male breast cancer including family history, gynecomastia, certain genetic syndromes, specific mutations (like BRCA2/1 genes), obesity and radiation exposure. A very large 2014 study suggested that gynecomastia was associated with a significantly increased risk of male breast cancer. In general, any male with gynecomastia and a strong family history of breast cancer should seek expert counsel from cancer specialists in order to determine if finasteride use is appropriate or not.