Hi Retrogal - please report ANY breast changes to your doctor - the vast majority of breast changes will be harmless but you don't want to risk that eeny tiny percentage that it's not. I had a mastectomy recently and at one of my appts I heard the breast surgeon talking about another patient she had to get special permission to operate on because she was SIXTEEN. So it can happen at any age. Your dr will probably examine the area and may order an ultrasound or other tests to confirm everything's ok. It could be something like a cyst or whatever but you won't know until you get it checked out.