I Have A Cancerous Mole

I have a mole that s obviously as problem.. And I was wondering if someone could tell the type of problem by my description. This mole began as a normal medium brown, oval shaped mole.. slightly raised and nodular a few millimeters in diameter. The mole changed to a dark blue/black and became engorged with blood.. enlarging and protruding above the skin over time painful and nodular. It had a red/purple bruise surrounding the engorged mole itself, about the circumference if a nickel. It pulsated with a mild pain and was painful to the touch. This would come and go. It would stay engorged with blood for a few months and then fade again for a spell before coming around again. The mole faded to a redish/purple color.. the surrounding bruise would fade away entirely. As time went on, over the span of a couple of years, the mole became more and more engorged with blood.. protruding through the skin more.. to a larger black mass that was very painful, about the mass of a pencil eraser, with a larger circumference. Until finally it burst just recently.. It bled a lot and I had to bandage the damn thing for a few days until it wasn t so much of a mess. Now its faded back to a grayish looking mole with red spots and a faint purple surrounding it.