What does a hard little spot after bruising on my ankle mean?

About three weeks ago I dropped a very heavy ladder on my ankle. It bruised instantly and blead a little from rupturing the skin. Now it still hurts just a little when I put pressure on it and about three days ago a little spot formed when I dropped the ladder. At first I thought I had cut myself but the skin is intact. Does this mean anything serious?

i got in the ankle with a softball going at least 80 mph. it just means that the bruise was a deep one and give it time to heal some more.