I have a hard lump on the lowermost area of my knee, it is slightly small than a ping pong ball size and it hurts when I push on it/put alot of pressure on it/or bump it against something. It is hard like a bone.
Also maybe a year or a year and a half ago, I got hit on that same spot with a crutch quite hard, which made the lump bigger.
could it have broken my knee cap?
also what can i do to fix this?