Fibroadenomas are round, benign lumps. Some are too small to be felt, while others may be several inches wide. Depending on your situation, your physician may simply recommend watchful waiting and continued monthly breast self-exams and annual clinical exams.
However, the fibroadenoma may be removed if it causes pain or discomfort, continues to grow or changes shape. Removal could also be recommended to ensure that the lump is indeed non-cancerous.