Hi guys as above, not really a injury but want some advice. Basically I had an unavoidable street fight a few months ago and ended up clenching the guy after a few punches and kneed him smack bang on the forehead, he fell to the ground and give up all will to carry on the fight he started, but my knee was numb for a few hours after lol. Now basically ontop my knee (the part I hit him with) has developed a lump which is still a little bit paniful when I deep massage it, the lump does not seem to want to go away. However it does not affect my movement range, walking/running ability or even my striking ability, it just is a pain in the arse feeling it and the slight swelling that is still there makes my knee look odd comapred to the other rofl. Now anyone have any idea what causes this lump (other than myself lol) and best way to get rid of it? Cheers guys.