My 15 year old daughter has a large, hard lump in each breast and its been there since she was 12 (when she first started puberty). She has small ‘A’ cup breasts and the lumps take up a lot of space (especially prior to her period when they get tender and enlarge). She hasn't developed much breast tissue and I was wondering if it was possible for a lump to interfere or affect breast growth in any way.
If you haven't already, I think it would be good to have a doctor take a look at the lumps sooner rather then later. If for nothing else then peace of mind.