I have a dark purple hard bump/lump on the bottom side of my breast. i have no idea what it is or if it's serious. it's small, the center is purple. ?

Always: Any new lumps, bumps, skin changes in the breast should be evaluated by your doctor. Great job doing your breast exam and finding it. Most breast masses are benign but it is very important to have it evaluated. If the area is easily visible consider an Healthtap inbox consult to one of our breast specialists, primary care docs or Obgyns.