I developed Gynecomastia when I turned 13

I still have enlarged breasts and I am 18. I am also conscious about it, never going out without a shirt on. I never had it treated as my doctor thought I could live with it. My doctor told me that I would have to go through a surgery to fix the problem. My question is this:  If I take finasteride (Propecia) will this problem get worse?

Answer: Although the drug finasteride (Propecia) is know on rare occasions to cause gynecomastia or breast lumps that are painful, your risk for this is the same as anyone without the condition (over 1:1000 men run this risk). You will have to weigh out the value of holding onto your hair with this drug vs the very remote risk on increasing your breast mass or developing painful breast lumps.