Hi.
Actually, you're not alone. People don't often come perfectly symmetrical including having uneven breast sizes. In fact, most people notice differences in the size of various parts on the right and left sides of their bodies. Some have a larger foot on one side, some have a larger hand one side...or ear or eyes--the list goes on.
Many women find they have a difference between their left and right breast sizes, but the difference is usually so slight that most other people don't notice. I can certainly understand why you might feel a bit self-conscious if there is a very large difference.
According to Dr. Karen Rosewater, who specializes in adolescent health, how much you can expect your breast size to change will depend greatly on how old you are. If you're still going through puberty, be patient. Your body has a lot more development in store and there is a good chance that your breasts will even out. Eventually, the difference may be far less noticeable than it is now. If you think you have fully developed, you might want to talk to a doctor about your options for reduction of one size.
Though the chances of having a medical condition is pretty rare, it wouldn't hurt to do a self exam to see if there is a lump in the area or to have a doctor examine you the next time you have an exam. Better to be safe, right?
All the best.
