Should I Be Concerned That I Keep Getting Cysts Filled

Should I be concerned that I keep getting cysts filled with blood in my right armpit and left breast. The cyst in my armpit will burst after being brought to the surface with a hot compress. Dark red, almost purple blood comes out of it. No puss no foul odor. If I squeeze the cysts in my breast occasionally I can feel it explode in my fingers but it all stays below the skin, nothing actually comes out. The reason I know it is filled with blood is that after it bursts I can actually see the blood under the skin, & the next day the will be a huge bruise the color of a dark purple plum about the size of a baseball on the side of my VERY large breast. Just wondering if I should show this to a doctor.