thats normal. the blood is transported to the surface before the body starts to... err... i dont know the right english word for this. i mean the body starts healing up the bruise and getting rid of that "old" blood in the bruise.
Nothing much really, I wasn't going that fast, not compared to a lot of crashes I've had before anyway. Just fell heavy, and into a bombhole so fell a fair way before I hit the ground (4ft maybe). I think I landed on a root too, not sure tbh - fookin hurt though
Aye, I still remember a crash I had 2 years ago where I should have broken every bone in my body - blacked out breifly and had a very painful neck for a few days, but was otherwise fine
a bruise is a simply bleeding under unbroken skin. it may be superficial, or deep. the pain is typically due to the swelling of the surrounging tissue and compression of the "pocket of blood" comprising the bruise.
the only things i would look out for is infection. a fiery red color to the overlying skin, draining of pus, fever/chills, significant warmth over the area may all be indicative of an organizing infection and should be checked out by your doctor.
Also, the discoloration is due to the de-metallation of the porphyrin moeity of the well known, O2 toting, heme group (Fe-protoporphyrin IX). Upon de-metallation, its optical properties change and a different collor is observed, other than the classic red (oxygenated, FeIII oxidation state) and blue/green (de-oxygenated, FeII oxidation state).
Yep, there's an herb called Arnica that you can get at a health food store that seems to work wonders on bruising. It's in a small white pill(s) that you let dissolve in your mouth. I had to have my face rebuilt a bit after a pretty gnarly wreck and it really helped with the bruising and swelling.
Meh, GiantDHRider's close enough. You're in med school, right?
Anyways, I wouldn't worry about it unless any of the funny things described above happened. I've had some pretty big nasty bruises (one that lasted several weeks, took up about 1/4 of my arm from football, others from cycling). As long as there's no intense pain (it'll hurt no matter what, though), I wouldn't worry about it. Give it 2-3 weeks if it's a real big one. That seems to be about average healing time. It should be a lovely minty green or jaundice yellow by then!
no seriously, its most likely scar tissue...or clot material. it'll take a few weeks for it to go down, but it may not completely disappear. as long as you're not in any pain...its cool
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